Thanks That helped,but I noticed another problem.If you enable Show thumbnail index with white page!
If you disable Show thumbnail displays such errors as in the picture.
Strict standards: Only variables should be assigned by reference in C:\wamp\www\MediaCompany\modules\mod_jo_k2_slideshow\mod_jo_k2_slideshow.php on line 14
on line 22
and Strict standards: Only variables should be assigned by reference in C:\wamp\www\MediaCompany\modules\mod_jo_k2_slideshow\helper.php on line 21,25,28,30,32,272,274,276,281,282,283,293,298,305,319,322.