Did you install the official version from Google Play or a direct download from DroidScript.org, or have you got it from another source?
Is either of you running software that modifies apps?
What make & model is your device?
What versions of Android is it running?
Does it make a difference if you clear DroidScript data?
Settings -> Apps & notifications -> App info -> DroidScript -> Storage -> "clear data"
Have either of you used 1.78 or did you both update from 1.76?
@Jo
I see the issue with almost any modification. Obviously DroidScript.org don't support modified versions of their software.
But if you are not patching the app, that's clearly not the problem.