phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1406 Data too long for column 'session_admin' at row 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f4b6ec116f26f98a5bd60280d1590332', -1, 1711718567, 1711718567, '365b133e', -4, 0, 0)

Line : 172
File : sessions.php