Lima app on mac os not uploading/transferring files

I need help. i've tried browsing through the support page and this forum to see if there is any solution but I couldn't find one. My lima is unable to transfer files to and from my mac. I can open lima and browse through the files but it is not transferring. I have the latest app version (1.4.6), running a mac OS 10.12.6. I have also restarted my computer, uninstalled and installed lima and even turned off the anti-virus. It was working fine until the last tine I used it a month ago.