Unable to open file for reading

I get this error: Unable to open file for reading. File: /www/wp-content/all-in-one-wp-migration/storage/”name of my file”

In the error logs there were more lines:

Nov 06 2018 10:17:55
{“Number”:2,”Message”:”fopen(\/www\/wp-content\/plugins\/all-in-one-wp-migration\/storage\/f937oi8funqp\/”name of file”): failed to open stream: No such file or directory”,”File”:”\/www\/wp-content\/plugins\/all-in-one-wp-migration\/lib\/vendor\/servmask\/archiver\/class-ai1wm-archiver.php”,”Line”:94}

Nov 06 2018 10:17:55
{“type”:2,”message”:”set_time_limit() has been disabled for security reasons”,”file”:”\/www\/wp-content\/plugins\/all-in-one-wp-migration\/functions.php”,”line”:1440}

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