Well this text "Looks like you were logged in with some other user account.
Do you wish to receive notifications for this user account ?" is present at three places in wplms push notifications plugin .
The text domain seems to be sent wrong in wplms push notifications plugin which is why the translation is not working for this text .
Please edit the wplms-push-notifications.php file in plugins/wplms-push-notifications folder and in the commented lines please edit this one :
https://prnt.sc/11r5a8m
.