@mshoaibhussain there is no new version of the plugin, but I tried switching it back on and it appears to be alright now!
@mshoaibhussain I am having the same problem. I have called PaySera helpline and they were already aware of the issue and it is currently being worked on. Hope it gets fixed soon.
@amandasjackson thanks for the advice. Yes I will do that. Further searching did not yield any results, apart from fining more people asking for this but not finding the answers. Seems like, at least.