startup errors

[12:56:58] [Server thread/INFO]: [LiteXpansion] Enabling LiteXpansion vDEV - 125 (git 96d1cf20)
[12:56:58] [Server thread/WARN]: [LiteXpansion] UnplaceableBlock - 'UNINSULATED_TIN_CABLE' (LiteXpansion vDEV - 125 (git 96d1cf20)): This item has an illegal stack size: 3. An Item size of 1 is recommended. Please inform the author(s) of LiteXpansion to fix this. Crafting Results with amounts of higher should be handled via the recipeOutput parameter!
[12:56:58] [Server thread/WARN]: [LiteXpansion] You can report this warning here: https://github.com/Slimefun-Addon-Community/LiteXpansion/issues
[12:56:58] [Server thread/WARN]: [LiteXpansion] UnplaceableBlock - 'UNINSULATED_COPPER_CABLE' (LiteXpansion vDEV - 125 (git 96d1cf20)): This item has an illegal stack size: 3. An Item size of 1 is recommended. Please inform the author(s) of LiteXpansion to fix this. Crafting Results with amounts of higher should be handled via the recipeOutput parameter!
[12:56:58] [Server thread/WARN]: [LiteXpansion] You can report this warning here: https://github.com/Slimefun-Addon-Community/LiteXpansion/issues
[12:56:58] [Server thread/WARN]: [LiteXpansion] UnplaceableBlock - 'UNINSULATED_GOLD_CABLE' (LiteXpansion vDEV - 125 (git 96d1cf20)): This item has an illegal stack size: 3. An Item size of 1 is recommended. Please inform the author(s) of LiteXpansion to fix this. Crafting Results with amounts of higher should be handled via the recipeOutput parameter!
[12:56:58] [Server thread/WARN]: [LiteXpansion] You can report this warning here: https://github.com/Slimefun-Addon-Community/LiteXpansion/issues