has anyone come accross this issue before, all of a sudden one of my details pickers has started displaying this error:
within the database this particular field can be null, and also with the staff tablem which references it, this can also be null, Im not sure on what I should currently do... If i press on the plus symbol however the results are displayed, thankyou for any assistance in this.
I have done these steps to get it working again, however I do not know what caused this issue:
If any one know's what could have caused this error, or a better way of fixing this (as the above does mean the details between the 2 have to be put back on the screens they are on). I would be grateful.