i tried to contact Qphoria for this issue, as suggested by @Straightlight, but i'm out of luck.
- IIS server
- SSL
- OC 2.2 (standard) and VQMod
- No Vqmod xml file added (only vqmod_opencart.xml)
vqmod/logs folder contains nothing
vqmod/vqcache folder contains 'vq2-D' (empty)
vqmod/checked.cache seems ok
vqmod/mods_cache seems ok
Front end side - it works fine
Back end side - i need to create a vqmod folder inside my admin folder to start back end.
There's a referencing problem with admin side configuration.
If i modify vqmod.php adding '../' to relative paths configuration, at beginning of file, back end works but front end fails

Thank you in advance