file sync reor

[#1]

hello somone hared a folder with me a few mounth ago. im working on 2 Pc's on one of them i renamed the folder. the oner of the folder deleted it. 
on one pc i get an sync eror with the name of the folder.
on the other pc everything fine.

how can i reset the eror?

[#2]

hello somone hared a folder with me a few mounth ago. im working on 2 Pc's on one of them i renamed the folder. the oner of the folder deleted it. 
on one pc i get an sync eror with the name of the folder.
on the other pc everything fine.

how can i reset the eror?