Problem with Julia Language Server, Execution of code and code cells in REPL

Hello everyone! After 2 months of using julia in vscode without any problems I am having this issue now: I cannot execute active files in the REPL and I can also not execute the code line by line. In the output of Julia Language Server there is a long list with warnings. Its always like “Warning: CSTParser took a long time (7 seconds) to parse”+ the name of a julia file with results from the last weeks. This warning appears for many result files. These files are in a subfolder of the folder in wich I am working. The files are synchonized with git.

However, I do not get the execution problems (and also not the list of warning of the Language Server) when I just open the file I want to work with but not the folder where the file is saved in.

What I have tried so far: Uninstall julia and the Language Support Extension in vscode and reinstall it, also restarting my computer.

Any help is very appreciated!