Does escrow pay for right-of-way maintenance assessment?

I just received a bill for right of way maintenance. Is that something that escrow supposed to pay for or do you have to pay by yourself?
If I don't pay by November 15, will it just rolled to my next year property tax payment? And will be included in my mortgage?
I just hope it won't affect my credit score.

My mortgage company has terrible customer service. Call them a couple of times but they couldn't help me, one even hanged up on me. Any advice would be great.
First time home buyer so there are a lot to lear. Thank you.
Added (1). The bill is for 300.00

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