Close Vita3K completely and relaunch it. Your fonts should now load error-free.
Start by grabbing the latest version for your platform (Windows, Linux, macOS, or Android) from the Official Vita3K Website 2. Secure the Firmware and Fonts vita3k firmware font package download exclusive
Search the Wiki section. An exclusive package is often linked under "Required Files - MEGA Link." Look for a file named Vita3K_Fonts_Exclusive_3.74.7z . Close Vita3K completely and relaunch it