Hello programmers!
I made two programms. One is for my marks in school and second is for library for my school. One man who work in the library in my school has error with this my software. Software can't load database anymore. When I start program I got error message:
Screenshot of the error message here
and when I click continue grid-view of data-base is empty. All items are gone.
Please help me fast as you can. Thanks.