Help me with error when install Additional Imagesv2.0 modul

[demvnn]

Hello everyone!

 

Hix, I just installed Additional Imagesv2.0 modul sucessed but then my site appear verry much serious error bellow:

When login as Admin -> Catalog/product -> Addititional Images .

 

Fatal error: Call to undefined function imagecreatefromgif() in /home/demvn/public_html/admin/includes/classes/alterimage.php on line 232

When enter buttons it will open a windows with adress as below:

http://www.dem.vndir_ws_admincreate_account.php/

 

Fatal error: Call to undefined function tep_hide_session_id() in /home/demvn/public_html/advanced_search.php on line 130

 

Fatal error: Call to undefined function tep_hide_session_id() in /home/demvn/public_html/includes/boxes/tell_a_friend.php on line 25

error at last of website

0 -

 

select startdate, counter from TABLE_COUNTER

 

[TEP STOP]

 

Anyone can fix this errors please help me now!

 

Thanks.