Vanilla orchid is not Doing well please help for advice

[sandra_meissnest]

Hi guys I'm new to this forum I got myself a vanilla orchid a few months ago its been growing nice but now all of the sudden I think I'm having root rot on the bottom and I'm scared that the plan is going to die I can take tomorrow a picture of it but it's turning yellowish and then brownish and it dies off can I do anything to prevent the rest of dying thank you so much for your help sometimes the plant is very wet and sometimes it is dry so I don't know what the problem is please help thanks again