Inspiron 3157 2-in-1, charging error

Hi all,

I have the above laptop and when I put the charger in it doesn't charge most of the time. Occasionally it will go into charge mode with the white light coming on but not very often. Also when it has the charging cable in and not charging the laptop goes into a very slow operation and the speaker sound is very muffled. Unfortunately don't have another charger. Error window comes up below when not going into charge mode.

Appreciate any help someone could give to point me in the right direction.