Error encountered while using Adobe Acrobat forms

Hi Experts,
I was using forms in our office when I suddenly got this warning message (see screenshot below).
I was new to using these forms and I tried calling our tech support who unfortunately was on leave.
I tried asking the others in the office but they haven’t encountered the warning yet.
So, I searched the internet but couldn’t find any answers.
I went to this forum to ask help on resolving the issue.
Please help me. Need to submit the forms ASAP.

Adobe Acrobat
Employee Signature cannot be left blank.
