Warning: mysql_connect(): Headers and client library minor version mismatch. Headers:50633 Library:50552 in /home/accuor/public_html/complaints/include/dbconnection.php on line 9

php error happened

Technical information
Error type2
Error descriptionCannot modify header information - headers already sent by (output started at /home/accuor/public_html/complaints/include/dbconnection.php:9)
URLaccu.or.ug/complaints/login.php?
Error file/home/accuor/public_html/complaints/login.php
Error line6
SQL queryselect TableName,AccessMask from `project5_ugrights` where GroupID in (-3)

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