When you ask a question you need to provide some basic information
-Forum quick start https://forums.adobe.com/docs/DOC-5601
Mac or Windows, and EXACTLY which version of the operating system?
Recent Mac AND Windows operating systems have been known to cause "odd" problems
Are you using a computer Administrator account with full read/write permission?
Exactly which version of the program do you have that is causing problems?
Error Compiling Movie... some past discussions and ideas
May be caused by . in name https://forums.adobe.com/thread/2166620
-1st, create a new project and import the project that has errors and see if that fixes the problem
-and a long discussion https://forums.adobe.com/thread/1240823
Well TBH i would rather just speak to someone
Im on Window 10
I am an admin with full permissions
I am using AME cc2018 and AE CC 2018
Moving this discussion to the After Effects forum.