The only thing i could get was the latest.log, as there was no crash report to be found. Reading through a bit of the log, it seems one of the errors involve the inability to save a crash report, so that probably explains it. The log also mentions other problems, but i'll just give you the log so that you can read it for yourself. Again, thank you for your help.
[20:35:13] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[20:35:13] [main/INFO]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[20:35:13] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[20:35:13] [main/INFO]: Forge Mod Loader version 7.99.40.1614 for Minecraft 1.7.10 loading
[20:35:13] [main/INFO]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_51, running on Windows 10:amd64:10.0, installed at C:\Program Files (x86)\Minecraft Launcher\runtime\jre-legacy\windows-x64\jre-legacy
[20:35:13] [main/FATAL]: There appear to be jars extracted into the mods directory. This is VERY BAD and will almost NEVER WORK WELL
[20:35:13] [main/FATAL]: You should place original jars only in the mods directory. NEVER extract them to the mods directory.
[20:35:13] [main/FATAL]: The directories below appear to be extracted jar files. Fix this before you continue.
[20:35:13] [main/FATAL]: Directory LOTRMod v36.11.jar contains [MANIFEST.MF]
[20:35:13] [main/ERROR]: Could not save crash report to C:\Users\roywk\AppData\Roaming\.minecraft\crash-reports\fml-crash-2021-07-21_20:35:13.txt
java.io.FileNotFoundException: C:\Users\roywk\AppData\Roaming\.minecraft\crash-reports\fml-crash-2021-07-21_20:35:13.txt (The filename, directory name, or volume label syntax is incorrect)
at java.io.FileOutputStream.open0(Native Method) ~[?:1.8.0_51]
at java.io.FileOutputStream.open(FileOutputStream.java:270) ~[?:1.8.0_51]
at java.io.FileOutputStream.<init>(FileOutputStream.java:213) ~[?:1.8.0_51]
at java.io.FileOutputStream.<init>(FileOutputStream.java:162) ~[?:1.8.0_51]
at java.io.FileWriter.<init>(FileWriter.java:90) ~[?:1.8.0_51]
at b.a(SourceFile:233) [b.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51]
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51]
at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:280) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
[20:35:13] [main/INFO]: [cpw.mods.fml.relauncher.CoreModManager:discoverCoreMods:281]: #@!@# FML has crashed the game deliberately. Crash report saved to: #@!@# C:\Users\roywk\AppData\Roaming\.minecraft\crash-reports\fml-crash-2021-07-21_20:35:13.txt
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.RuntimeException: Extracted mod jars found, loading will NOT continue
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:273)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[20:35:13] [main/ERROR]: An error occurred trying to configure the minecraft home at C:\Users\roywk\AppData\Roaming\.minecraft for Forge Mod Loader
java.lang.RuntimeException: Extracted mod jars found, loading will NOT continue
at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:273) ~[forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221) ~[forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126) [forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
[20:35:13] [main/ERROR]: Unable to launch
java.lang.RuntimeException: Extracted mod jars found, loading will NOT continue
at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:273) ~[forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221) ~[forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) ~[forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67) ~[forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) ~[forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126) ~[forge-1.7.10-10.13.4.1614-1.7.10.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: cpw.mods.fml.relauncher.FMLSecurityManager$ExitTrappedException
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:25)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.SecurityManager.checkExit(SecurityManager.java:761)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.Runtime.exit(Runtime.java:107)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.System.exit(System.java:971)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
[20:35:13] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)