phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '26ec2f0c20b7a53612000689143f094b' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('26ec2f0c20b7a53612000689143f094b', -1, 1770260776, 1770260776, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php