Make a new FILE API and add a simple error screen in case most thing went down

load.lua

@@ -1,15 +1,16 @@
--- Bigint library
-bigint = require "libs.bigint.bigint"
-number_names = require "libs.bigint.named-powers-of-ten"
-require "libs.simple-slider"
-
 -- Fonts
 FONT_tromi = love.graphics.newFont('res/fonts/monofonto rg.otf', 28)
 FONT_big = love.graphics.newFont('res/fonts/monofonto rg.otf', 56)
 
 local font_height = FONT_tromi:getHeight() * 0.5
 local font_big_height = FONT_big:getHeight() * 0.5
+
+-- Bigint library
+bigint = require "libs.bigint.bigint"
+number_names = require "libs.bigint.named-powers-of-ten"
+
 -- BUTTON library
+require "libs.simple-slider"
 BUTTON = require "libs.simple-button"
 BUTTON.setDefaultOption{
     draw = function(self)