Error Saving Project Data.. need help !

after i update my gsa ser to ver 11.42 i got Error saving project data .. how can i fix it? is it okay if i just ignore it?

sorry, fixed that in 11.43

I have this error on version 11.51 GSA SER:

2017-01-19 17:12: Error saving project data

What is problem?

low disk space maybe?