Check my Joomla installation, fix font and some warnings and messages

I am looking for someone to check my Joomla installation and fix the font issues that I am experiencing. The specific issue is inconsistencies in the font, where it is not displaying correctly. I have a specific font that I want to use for my website. Also there are some warnings and installation Messages. And also I have a problem to show other language. I use ja_stark template. Skills and experience needed for this project: - Strong knowledge of Joomla and its installation process - Experience in troubleshooting font issues in Joomla - Familiarity with different font styles and the ability to implement specific fonts - Attention to detail to ensure the font is consistent throughout the website - Ability to fix any warning messages or other issues that may arise during the process