Clicking on the mods tab causes this error in a 0.4.11 build
Could not open file of texture: /home/david/.minetest/textures/base/pack/no_screenshot.png
23:03:57: ERROR[main]: GUIFormSpecMenu::drawMenu() Draw images unable to load texture:
23:03:57: ERROR[main]: /home/david/.minetest/textures/base/pack/no_screenshot.png