Error writing to error log! MySQL Error: Duplicate entry '1470352' for key 'PRIMARY'

Original error: E_USER_NOTICE: Update plugin: plugins/removelicenselink.php Plugin attempted to register the deprecated hook 'header_links' in /home/saddlemu/public_html/cmsb/lib/plugin_functions.php:253

Unexpected output was sent by the following file: /home/saddlemu/public_html/cmsb/lib/errorlog_functions.php (on line 260)
Developers: Check plugins and library files for accidentally added whitespace or other characters.