Board Manager Blank

I am using Arduino IDE 1.8.13 installed with XBPS package manager for Void Linux. When I open the board manager the window is completely blank.

Any help troubleshooting?

My recommendation is for you to use the official Arduino IDE downloaded from here:
https://www.arduino.cc/en/software

The Arduino IDE packages are maintained by random 3rd parties who usually make unspecified changes that result in unique problems that the community aren't as well equipped to support. In addition, they are also often allowed to become outdated. In this case, the latest version of the Arduino IDE is 1.8.15.

If for some reason you are set on continuing to use the package, or if you switch to the official IDE and still have the same problem, I'll provide instructions for sharing additional information that might help us to identify the problem.

Please do this:

  1. Close all Arduino IDE windows.
  2. Start the Arduino IDE. (this restart was done to get a blank console pane)
  3. Select Tools > Board > Boards Manager from the Arduino IDE's menus.
  4. After Boards Manager window has finished opening, click the Close button.
  5. Click on the black console pane at the bottom of the Arduino IDE window. Hopefully it will contain some output related to whatever caused the package index to not load.
  6. Press Ctrl+A to select all the text.
  7. Press Ctrl+C to copy the selected text to the clipboard.
  8. Open a forum reply here by clicking the Reply button.
  9. Click the </> icon on the post composer toolbar. This will add the forum's code block markup (```) to your reply to make sure the error messages are correctly formatted.
    Code block
  10. Press Ctrl+V. This will paste the compilation output into the code block.
  11. Move the cursor outside of the code block markup before you add any additional text to your reply.
  12. Click the Reply button to post the output.