Fatal error: Maximum execution time of 30 seconds exceeded in...

[Eikinskjaldi]

If you are on a shared server then the answer is you cannot do anything.

If you are on a vps or dedicated server AND have root access privileges to your system, then you need to edit php.ini and change

max_execution_time = 30

to

max_exectution_time = something bigger

First, of course, you have to find php.ini, whcih will entirely depend on your system

some places it might be are
/usr/local/lib
/usr/local/Zend/etc
/usr/lib

You will need to restart apache after making the change.