Hi, we currently manage about 50 sites, some of which are hosted by the Italian provider Aruba.
We subscribed to a MainWP Pro program just yesterday, installing Child on all managed sites. We encountered connection problems between Main and Child in only 3 cases, curiously on sites hosted on Aruba. In two other cases, again on Aruba servers, the problem does not occur: obviously we checked that the configurations (plugins, PHP version, etc.) were similar.
In one case we received an email reporting a technical problem with the plugin (domain nicolagambetti.it) Details of the error ==================== An error of E_ERROR was caused in line 1321 of the file /web/htdocs/www.nicolagambetti.it/home/wp-content/plugins/mainwp-child/class/class-mainwp-child-server-information.php. Error Message: Uncaught TypeError: fseek(): Argument #1 ($stream) must be of type resource, bool given in /web/htdocs/www.nicolagambetti.it/home/wp-content/plugins/mainwp-child/ class/class-mainwp-child-server-information.php:1321 Stack traces: #0 /web/htdocs/www.nicolagambetti.it/home/wp-content/plugins/mainwp-child/class/class-mainwp-child-server-information.php(1321): fseek() #1 /web/htdocs/www.nicolagambetti.it/home/wp-content/plugins/mainwp-child/class/class-mainwp-child-server-information.php(1255): MainWP\Child\MainWP_Child_Server_Information::render_last_lines () #2 /web/htdocs/www.nicolagambetti.it/home/wp-content/plugins/mainwp-child/class/class-mainwp-child-server-information.php(1225): MainWP\Child\MainWP_Child_Server_Information::render_error_log () #3 /web/htdocs/www.nicolagambetti.it/home/wp-content/plugins/mainwp-child/class/class-mainwp-child-server-information.php(556): MainWP\Child\MainWP_Child_Server_Information::render_error_page () #4 /web/htdocs/www.nicolagambetti.it/home/wp-content/plugins/mainwp-child/class/class-mainwp-pages.php(335): MainWP\Child\MainWP_Child_Server_Information::render_page() #5 /web/htdocs/www.nicolagambetti.it/home/wp-includes/class-wp-hook.php(308): MainWP\Child\MainWP_Pages->render_pages() #6 /web/htdocs/www.nicolagambetti.it/home/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #7 /web/htdocs/www.nicolagambetti.it/home/wp-includes/plugin.php(517): WP_Hook->do_action() #8 /web/htdocs/www.nicolagambetti.it/home/wp-admin/admin.php(259): do_action() #9 {main} thrown
I ask the forum if any user has encountered the same problem.