Could not use ''; file already in use in access database

hi

i have site with access database
that work very good on local
but when i send it on host , when i want add a test or picture i see the error :

Operation must use an updatable query

 
i set permisson of my database to full
ofcourse my database is beside the root of my site not in a folder

and also i set permission to folder include database that means wwwroot because my database is beside root of my site

and that error be disappear but now i see another error :

Could not use ''; file already in use

i search my codes of any page and i find any opened connection that don't close

then how must i do for this error ?

thx