on removing installation got the error in console:
ADDRESS//cpsess/frontend/paper_lantern/softaculous/index.live.php?act=remove&insid=26_16158&jsnohf=1 Failed to load resource: the server responded with a status of 500 (Internal Server Error)
happens just to one installation, something bogus with it, I guess...
It seems to happen on very big installations, with big DB, possibly some kind of timeout... It also happens when duplicating very big installations. with ~30k woocommerce records in.