Converting a standalone project to a multi-user project deleted the variables and functions

Converting a standalone project to a multi-user project deleted the variables and functions

Hello,

We have a standalone project and decided to switch to multi-user operation.
However, converting the standalone project to a multi-user project deleted all the variables and functions.
What could be the problem?

Thanks in advance.

This is a migrated post! Originally posted on 26.03.2020 by user Anas_FAISAL. Please be aware that information can be outdated.