My pet destroyed my gov furnished computer monitor

My pet bit my computer monitor that was furnished by the government. My monitor was fine for 3 hours, but then green and purple lines started showing on the screen and then it slowly went black. The bite is pretty small, so I thought I’d be able to continue to use it but unfortunately, with it going green/purple/black, I won’t be able to.

Will I have to pay for it? Is it okay if I replace the monitor with one I purchase personally? I can’t control my pet at all times and I would hate for this to happen again to GFE.

Edit: I should have noted in my post that I am a full time WFH employee. This is an external computer monitor, not my laptop.