Error log

[Milance]

PHP Deprecated: Function ereg() is deprecated in /includes/class_postbit.php(345) : eval()'d code on line 67
PHP Deprecated: Function ereg() is deprecated in /includes/class_postbit.php(345) : eval()'d code on line 82

This big log of error is happening to me. How do I solve this?
v 4.2.4
php 5.6.40

[snakes1100]

You can either disable deprecated msg via php.ini or my guess is you have an ad modification causing the messages & needs to be upgraded.

Id also upgrade vb to 4.2.5