When I login as superadmin and generate epub file, it works fine.
When I login as administrator and generate epub file, I get the following error.
Warning: file_put_contents(/home/admin/web/public_html/wp-content/uploads/sites/12/pressbooks/cache/e3ca2154cd11b275c20bd0c029eecdfe0263237e.php): failed to open stream: No such file or directory in /home/admin/web/public_html/wp-content/plugins/pressbooks/vendor/illuminate/filesystem/Filesystem.php on line 122
Warning: include(/home/admin/web/public_html/wp-content/uploads/sites/12/pressbooks/cache/e3ca2154cd11b275c20bd0c029eecdfe0263237e.php): failed to open stream: No such file or directory in /home/admin/web/public_html/wp-content/plugins/pressbooks/vendor/illuminate/view/Engines/PhpEngine.php on line 42
Warning: include(): Failed opening ‘/home/admin/web/public_html/wp-content/uploads/sites/12/pressbooks/cache/e3ca2154cd11b275c20bd0c029eecdfe0263237e.php’ for inclusion (include_path=‘.:/usr/share/php’) in /home/admin/web/public_html/wp-content/plugins/pressbooks/vendor/illuminate/view/Engines/PhpEngine.php on line 42