Audio recording error - consistent clicking and buzzing

Can anyone help me identify what this is ? hear sample here:
and secondly is there anyway the audio can be saved?

it only happens every now and again when recording, so im totally unsure what is causing it.

thank you in advance.

mac - OS EL CAPITAN 10.11.6
audacity -

The site says:
“This track was not found. Maybe it has been removed”