Keep getting this error message while trying to save file couldn't be open for writing

hello 
looking for someone to help me , I keep getting this file error "after effects error file couldn't be open for writing.. name of file where i want save etc.. 
I thought it might be the version I was using so I uninstalled 2024 and installed 2023 , same problem, while am able to work , I am not able to save my work , I am working on a mac , so please no PC fixes as that will not work for me if someone is willing tohelp 
thank you 
new to after effects pls be kind ..