I suggest you use InterSystems Portal, go to System Operation section, then Databases. Look at which databases lie within the mountpoint which is showing 81% use:

Besides the above, I also noticed that the parser also fails when calling a %SYS routine as in:

do DecomposeStatus^%apiOBJ(sc,.err,"-d")

@Victor Gordillo please clarify what you mean by "the parser fails". Maybe with a screenshot?

InterSystems deletes the source code of many %-routines before shipping, including %apiOBJ. Perhaps this is causing the problem you are seeing.

Previously raised at https://github.com/intersystems/language-server/issues/77 and in several other issues that were marked as duplicates of this.