Client deletes server files

I am sorry for not providing a lot of detail, but I am new to nextcloud. It seems to be running great on CentOS and the client on Linux. The problem is that when I log into nextcloud from a new computer, instead of syncing, it simply deletes the files on the server. Googling only provided limited information. But does anyone know of this problem and why it is happening? Or some idea as to why it is happening?

Hi,

Is the time/date correct on the server? If not, it could be the issue.