What Does This Message Mean?

[Keukasmallie]

This message has been popping up occasionally on my mbp in the past few days.

What does it mean, why is it appearing all of a sudden, etc.?

 

[Macman45]

This message has been popping up occasionally on my mbp in the past few days.

What does it mean, why is it appearing all of a sudden, etc.?

Looks like a time machine related error....my best guess is that TM can't find your backup location....check your Time Machine settings.

 

[S.B.G]

This message has been popping up occasionally on my mbp in the past few days.

What does it mean, why is it appearing all of a sudden, etc.?

That's from an advertising service that infected your browser. Reset Safari and clear the cache, check all your extensions and make sure there isn't anything in there that you don't want.

 

[Macman45]

That's from an advertising service that infected your browser. Reset Safari and clear the cache, check all your extensions and make sure there isn't anything in there that you don't want.

I see, I just noticed the sparse reference...Clamxav would get rid of it if clearing the cache won't.