Crashes with Menus and builtin.

[IrrlichtMt4]

Minetest 5.5.0-stable

Note: This was not tested in 5.6.0-dev. I might test when I get the time to.
Note: seems to happen when Minetest couldn't install a package. This may be caused by bad internet but this crash never happened to me in 5.4.1 or under

Crashes sometimes when installing packages.

2022-03-22 18:04:25: ERROR[Main]: HTTPFetch for https://content.minetest.net/api/packages/?type=mod&type=game&type=txp&protocol_version=40&engine_version=5.5.0 failed (Timeout was reached)
2022-03-22 18:04:25: ERROR[Main]: Main menu error: Runtime error from mod '' in callback handleMainMenuButtons(): ...5.5.0-win64\bin..\builtin\mainmenu\dlg_contentstore.lua:638: attempt to index field 'aliases' (a nil value)
2022-03-22 18:04:25: ERROR[Main]: stack traceback:
2022-03-22 18:04:25: ERROR[Main]: ...5.5.0-win64\bin..\builtin\mainmenu\dlg_contentstore.lua:638: in function 'update_paths'
2022-03-22 18:04:25: ERROR[Main]: ...5.5.0-win64\bin..\builtin\mainmenu\dlg_contentstore.lua:1045: in function 'create_store_dlg'
2022-03-22 18:04:25: ERROR[Main]: ...test-5.5.0-win64\bin..\builtin\mainmenu\tab_content.lua:172: in function 'handle_buttons'
2022-03-22 18:04:25: ERROR[Main]: ...ownloads\minetest-5.5.0-win64\bin..\builtin\fstk\ui.lua:142: in function 'handle_buttons'
2022-03-22 18:04:25: ERROR[Main]: ...ownloads\minetest-5.5.0-win64\bin..\builtin\fstk\ui.lua:186: in function <...ownloads\minetest-5.5.0-win64\bin..\builtin\fstk\ui.lua:172>

[IrrlichtMt4]

Closed because the error does not occur in 5.6.0-dev.