I have reviewed various questions that appear to be related and still find the issue unclear.
I'm asking with specific reference to How to break off contact with someone without hurting their feelings? which has been closed as off-topic for:
asking for personal advice on "what to do" without defining a goal; this is too subjective. Edit your question to explain what you hope to achieve and how you would like to interact with the others involved."
As far as I can see however, the OP has defined a goal:
break off contact with someone without hurting their feelings
and at least indicated that they wish to interact with the others involved in a direct way as they have specified that
I don't have the heart to ghost her.
The OP has also indicated what some of the difficulties with direct communication are:
English isn't her first language and we already sometimes have trouble communicating in normal conversation. So, communicating something like this can be difficult.
It seems clear that the OP has an objective of breaking of contact, wishes to communicate this intention to the other party and wishes to do so in a way that is unambiguous given the language barrier.
I appreciate that the OP has stated that they are 'not sure what to do', but I don't see that they have asked 'what they should do', they have decided on a course of action and are looking for assistance on how to effectively achieve that without causing undue distress to the other party.
So what further is it that we require of them? If I edit the question to say 'what interpersonal skills can I deploy to achieve this?', (and shouldn't that be accepted as a given on any question on IPS anyway?) would that bring it within scope?