Windows update replisapi.dll

hello i use web sync for merge replication. my sqlserver is sql server 2014. I have an error that I have been looking for days and I cannot find. it is terrible the little information that is given by the error.

how i can update the replisapi.dll dll. where can i find updates? could I take for example the dll of sql 2016 or higher and put it instead?

Thank you very much for your answers
pascal
ps
excuse me my english i'm french