Magento 2 permission fixes - server skills required

Hello After moving my website to new hosting company I had some permission issue on the new server, I thought permissions issues were solved. We run command to test cron job if it works or not and seem to causes permission to return. Would like to solve permission issues once and for all, I found this info in the logs: I have HIDDEN the domain in the log [login to view URL]: [2020-08-24 21:24:14] [login to view URL]: The stream or file "/home/admin/domains/****/public_html//var/log/[login to view URL]" could not be opened: failed to open stream: Permission denied {"exception":"[object] (UnexpectedValueException(code: 0): The stream or file \"/home/admin/domains/****/public_html//var/log/[login to view URL]\" could not be opened: failed to open stream: Permission denied at /home/admin/domains/****/public_html/vendor/monolog/monolog/src/Monolog/Handler/[login to view URL])"} [] [2020-08-24 21:52:16] [login to view URL]: Compilation from source: LESS file is empty: frontend/TemplateMonster/theme059/pl_PL/Magento_Swatches/css/[login to view URL] {"exception":"[object] (Magento\\Framework\\View\\Asset\\ContentProcessorException(code: 0): Compilation from source: LESS file is empty: frontend/TemplateMonster/theme059/pl_PL/Magento_Swatches/css/[login to view URL] at /home/admin/domains/****/public_html/vendor/magento/framework/Css/PreProcessor/Adapter/Less/[login to view URL])"} [] [2020-08-24 21:52:16] [login to view URL]: The stream or file "/home/admin/domains/****/public_html//var/log/[login to view URL]" could not be opened: failed to open stream: Permission denied {"exception":"[object] (UnexpectedValueException(code: 0): The stream or file \"/home/admin/domains/****/public_html//var/log/[login to view URL]\" could not be opened: failed to open stream: Permission denied at /home/admin/domains/****/public_html/vendor/monolog/monolog/src/Monolog/Handler/[login to view URL])"} [] [2020-08-24 21:52:23] [login to view URL]: Compilation from source: LESS file is empty: frontend/TemplateMonster/theme059/pl_PL/Magento_Swatches/css/[login to view URL] {"exception":"[object] (Magento\\Framework\\View\\Asset\\ContentProcessorException(code: 0): Compilation from source: LESS file is empty: frontend/TemplateMonster/theme059/pl_PL/Magento_Swatches/css/[login to view URL] at /home/admin/domains/****/public_html/vendor/magento/framework/Css/PreProcessor/Adapter/Less/[login to view URL])"} [] [2020-08-24 21:52:23] [login to view URL]: The stream or file "/home/admin/domains/****/public_html//var/log/[login to view URL]" could not be opened: failed to open stream: Permission denied {"exception":"[object] (UnexpectedValueException(code: 0): The stream or file \"/home/admin/domains/****/public_html//var/log/[login to view URL]\" could not be opened: failed to open stream: Permission denied at /home/admin/domains/****/public_html/vendor/monolog/monolog/src/Monolog/Handler/[login to view URL])"} [] [2020-08-24 22:05:50] [login to view URL]: Compilation from source: LESS file is empty: frontend/TemplateMonster/theme059/pl_PL/Magento_Swatches/css/[login to view URL] {"exception":"[object] (Magento\\Framework\\View\\Asset\\ContentProcessorException(code: 0): Compilation from source: LESS file is empty: frontend/TemplateMonster/theme059/pl_PL/Magento_Swatches/css/[login to view URL] at /home/admin/domains/****/public_html/vendor/magento/framework/Css/PreProcessor/Adapter/Less/[login to view URL])"} [] [2020-08-24 22:05:50] [login to view URL]: The stream or file "/home/admin/domains/****/public_html//var/log/[login to view URL]" could not be opened: failed to open stream: Permission denied {"exception":"[object] (UnexpectedValueException(code: 0): The stream or file \"/home/admin/domains/****/public_html//var/log/[login to view URL]\" could not be opened: failed to open stream: Permission denied at /home/admin/domains/****/public_html/vendor/monolog/monolog/src/Monolog/Handler/[login to view URL])"} [] System log: [2020-08-24 01:34:02] [login to view URL]: Brand with id "28" does not exist. [] [] [2020-08-24 03:33:46] [login to view URL]: The bucket doesn't exist. [] []