Dear Omar,
We have same problema with a customer with two companies.
Users can login into company 1 but when they want to switch to the other company same error appears.
Its not a hal problema, because we delete halcust folder, do expo/impo without hal files and still happens.
There is no way to login into company 2 and if I delere hansa.hdb from the client folder and tried to login to company 2 as first choice, I receive the error and client shutdown.
Then I´m not able to see login screen anymore, I run Serp executable and error appears.
Is there any way to see which is the register with problem?