Why are my users getting bandwidth limit met on esignatures?

Some users are getting bandwidth limit met on esignatures. I cant find anything that says there is a limit or that there would be a limit. Can you explain please.

Apologies for the inconvenience. I would like to inform you that this was just a temporary issue, and this should now be fixed and widgets functional once again. If you have further trouble with this error, let us know and we will be happy to have another look.