Reset Password Error

(mariadb.InterfaceError) Server has gone away
[SQL: SELECT users.id AS users_id, users.username AS users_username, users.password_hash AS users_password_hash, users.email AS users_email, users.is_active AS users_is_active, users.created AS users_created, users.reset_secret AS users_reset_secret, users.la_opt_out AS users_la_opt_out 
FROM users 
WHERE users.username = ? OR users.email = ? 
 LIMIT ?]
[parameters: ('soeren.roesges@rwth-aachen.de', 'soeren.roesges@rwth-aachen.de', 1)]
(Background on this error at: https://sqlalche.me/e/20/rvf5)