For the last couple few days, I have been getting the out of memory error messages when checking SER on my VPS.
I'm running 20 projects with the schedule. Run 5 at a time and switch every hour.
From the testing I have done @Sven
over the last few day's, I think I pinpointed the problem to do with the article manager. The projects that start running when this error happens, have 5 articles added to them.
Hope this information helps.