Help me in a japanese sentence

What does “おあい できて うれしい です。” mean??

the dictionary form of あい is あう which means “meet”
できて is できる which means “can”
うれしい is “grad”
です is “be-verb”

おあい できて うれしい です literally means “I am grad to be able to meet you.”
So おあい できて うれしい です means “Nice to meet you”

お before あい is a polite form which you don’t need to worry about the explanation for now.