Forum Fatal Error on Step 5 of vB 4.0.1 upgrade!!!

[محروم.كوم]

On step 5 of the vb 4.0.1 upgrade I get this error message:

"Step 5) Merge template changes
Merged template successfully: USERCP_SHELL (style: 5)
Merged template successfully: userfield_checkbox_option (style: 5)
Merged template successfully: userfield_optional_input (style: 5)
Merged template successfully: userfield_radio_option (style: 5)
Merged template successfully: userfield_select (style: 5)

Merged template successfully: userfield_select_multiple (style: 5)
Merged template successfully: userfield_textarea (style: 5)
Merged template successfully: userfield_textbox (style: 5)
Merged template successfully: userinfraction (style: 5)
Merged template successfully: userinfraction_view (style: 5)
Merged template successfully: usernote (style: 5)
Merged template successfully: usernote_note (style: 5)

Fatal error: Maximum execution time of 30 seconds exceeded in

/var/www/vhosts/mynewcanaanforum.com/httpdocs/includes/class_diff.php on line 288"

How in the everlovi' blue-eyed Hell do I get my forum back? __DEFINE_LIKE_SHARE__