Problem sending saved form

hello guys we have implemented a survey through ODK in Afghanistan
one of our enumerator faced a problem that is he is not able to send saved forms
however at the begin it was working fine
but right now it gives problem

any idea please

Dear Friend,

Your question is not clear, but I have some question to clarify your problem.
Did you change anything on your survey form?
What kind of tool are you using to create the survey form or is it excel?

Regards

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