SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('1b86c7da68cd9a3d9f7ec801b1853a85','0','18.117.107.90','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714382181','login.php?sid=e513b295eb33bd9fb821b49f9f7928ee','0','0','')
mysql error: Duplicate entry '1b86c7da68cd9a3d9f7ec801b1853a85' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 29.04.2024 @ 11:16
Script: /login.php?sid=e513b295eb33bd9fb821b49f9f7928ee
Referer: