Unable to upload file above 60kb on all 4 WordPress websites

Each time I try to upload a file like an image or pdf or any file above 60kb I get an error of Unexpected response from the server, or Post-processing of the image failed likely because the server is busy or does not have enough resources.

I did contact my hosting providers as updated my Update limit to
`safe mode = Off (cannot adjust)
memory_limit = 256 M (MAXIMUM)
max_execution_time = 30 (MAXIMUM in seconds)
max_input_time = 60 (MAXIMUM in seconds)
post_max_size = 32M (MAXIMUM)
upload_max_filesize = 32M (MAXIMUM)
enable_dl = Off (cannot adjust)`

But still am facing the same issues. Please help

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