e-sinature window showing

I'm working on Acrobat some PDFs with fill in fields. For my job I have to be able to copy information from those fields as fast as I can, but since this week I have been experiencing some trouble with this simple operation: when I try to select the whole text from any fill in field, a small Icon for e-signature appears, I have to click on it, then the e-signature window appears, I have to click cancel and then I can select or fill any fill in field.

I've already uninstalled and installed Acrobat again, it works fine until the next morning, it all happens again. So everyday I have to uninstall and install Acrobat to make it work without trouble.

Is there a permanent solution for this issue?