Zend Optimizer Error on Mobil directory

I am trying to get to the Mobil editor on my website. However, I get the Zend Optimizer is not installed error. I opened the php.ini file that is in the m directory and made sure that the ini file points to the correct location 

zend_optimizer.optimization_level=15

zend_extension=/kunden/homepages/42/d420738214/htdocs/toscanas/ZendOptimizer/data/5_2_x_comp/ZendOptimizer.so

I still get the error. Not on the main site, just the mobil site.

Jim Patterson