clarkwinkelmann sorry for the delay. i removed it and my site is back online now. thank you so much.
datitisev yes, i am using bazaar and still i am seeing error "Oops, something went wrong" when i try to uninstall or enable any extension. installation happens without any problem from the bazaar. but when i navigate to extensions page to enable it, i see an error. At present using Composer to install and uninstall any extension. enabling takes some time though. works after several errors.
Robin.