Connection to the phone is unstable

Hi . Currently im using Samsung Galaxy Buds2 and it pairs my Samsung A7 2017 .

Mostly, when im using Buds2, both of my L and R earphone will stable when i put my phone in my pocket unless its too far . However, yesterday i dropped the Buds2 on the floor and it made the right ear had the following problems :

1. It cannot charge normally and it seems the two intacts of the R earphone was unable to meet with the intacts inside the case . Therefore , my R earphone only able to charge a bit
2. The connection between the case and the two earphones really unstable . If i want to hear from them now i have to place my phone in front of me all the time . If my phone is in my pocket , the connection will become unstable
3. So what should i do to make them back to normal again ? And if i have to replace components inside them then will it's possible ?

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