522782 joomfish expert needed.

hi devs, we are using joomla 1.5.23 joomfish 2.1.7 whole site working as should be , translations work very well, and have no errors. the problem is only under a certain category only when we display articles and only when those articles are previewed in the default language. The problem is very very slow load time only for this situation. if we disable jfdatabase (joomfish plugin) those pages are loading as all other very fast. so we have managed to pinpoint the problem but not able to solve. something to mention degug option in joomla works great to the whole site , but for this situation (display article under a certain category) give a 500 error. when jfdatabase disable debug works fine in this. some examples to clarify situation [login to view URL] loads extremely slow (jfdatabase enabled) [login to view URL] loads fine very quick but in english language (jfdatabase enabled) [login to view URL] loads fine very quick (jfdatabase DISABLED) [login to view URL] loads fine very quick regardles jfdatabase enabled or not the problem is only in the cat it 10 and in defaultlanguage.