How to solve this problem in 4G LTE L.E-RAB.Rel.eNodeB.Userinact (None)?

How to solve this problem in 4G LTE L.E-RAB.Rel.eNodeB.Userinact (None)

As the vendor is Huawei (as per counter), you can check this:

Measurement points of abnormal E-RAB releases

Thank you so much ! do you have short pdf regarding ERAB Drop problem and solutions and ERAB Fail problem and solutions?
are both ERAB DROP AND ERAB Fail related ?