I believe this is caused by having a symbol that exits the VMF code early, resulting in broken code - which makes the loader fail. If the last person to use the VMF inserted any of these symbols anywhere, is probably the case: ' " ; \
You can check the VMF with Notepad++ at line 94368 for any abrupt offenders, or paste the code to pastebin and let someone here sort it out (like me), alternatively there are autosaves luckily (located at C:\HammerAutosave).
For more information check:
https://developer.valvesoftware.com/wiki/Talk:Compile_Errors