OMNEST used to work fine but for the last few days it showed java heap space error

Question

My OMNEST was working fine for many years until the last few days when it showed error about java heap space. I listed below some errors that I saw 1. An internal error occurred during: "EnclosingASTNameJob". Java heap space 2. An internal error occurred during: "Computing Macro Expansion". Java heap space As far I remember, I did not install any new program nor changed any Java related config. FYI, I am not familiar with Java I will appreciate any help thanks Gaza