Failed to upload data on server

#Urgent_help

We are currently collecting large scale data through kobo-collect. In our survey we are listing around 120 Households in a single form. Each household information contains 4 repeat group where one field contains option to take photos. On average we are have 3-50 photos in one listing form.

Some enumerators are facing a very unique problem.

  1. when they are inputting information of 80/90 households sometimes upon clicking the photo button their kobo crashes and take them to a new form. Additionally 2/3 drafts form automatically created in their device. Later, when they reopens a form, they are shown to recover that form. Its manageable.
    1. The worrying one is for some enumerators they are failing to send forms through the server. We checked several times and confirmed that their forms and server settings are all correct. But still they are having this message: Failed to Upload; please make sure form is configured to accept submissions on the server. Other enumerators can regularly send but some can’t. We facing this issues very frequently.