Getting an Error: 88
I'm a freelancer and recently I've delivered my project to client and he said that he cannot open the file. Because it gives Error:88. Can anyone helps me to sort this out? If this failed I'm going to lose the project that I've worked on weeks. I download the same file that I shared with client but it works well for me. File was not saved on cloud. (I'm working on Mac OS 11.2.3) 
