Fix error when you do not have the games installed

Fixed error when you do not have the games installed: 
-Persona 4 Golden
-Catherine
-Alien Shooter

Author: ONElua

AUTOPLUG2/scripts/psvita/aliendlc.lua

@@ -1,22 +1,22 @@
 AlienShooter = false
 
 --Ckecking game Alien Shooter
-Alien = {
+AlienTB = {
 	{ id = "PCSE00445", region = "North America" },
 	{ id = "PCSB00561", region = "Europe" },
 }
 
 gamesAlien = {}
-for i=1,#Alien do
-	if game.exists(Alien[i].id) then
+for i=1,#AlienTB do
+	if game.exists(AlienTB[i].id) then
 		AlienShooter = true
-		table.insert(gamesAlien,Alien[i])
+		table.insert(gamesAlien,AlienTB[i])
 	end
 end
 
 function AlienShooter_DLC_Unlocker()
 
-	if not AlienShooter then os.message(LANGUAGE["NO_ALIENSHOOTER_GAMES"]) end
+	if not AlienShooter then os.dialog(LANGUAGE["NO_ALIENSHOOTER_GAMES"], LANGUAGE["MENU_PSVITA_AL_DLC_UNLOCKER"]) return end
 
 	local AlienShooter_ID = "ALIENDLC.png"
 
@@ -54,7 +54,7 @@ function AlienShooter_DLC_Unlocker()
 			if selector == i then
 				draw.fillrect(xRoot,63,w,42, color.green:a(90))
 			end
-			screen.print(xRoot+(w/2), 75, gamesAlien[i].id, 1, color.white, color.blue, __ACENTER)
+			screen.print(xRoot+(w/2), 75, gamesAlien[selector].id, 1, color.white, color.blue, __ACENTER)
 			draw.fillrect(750,435,200,42, color.shine:a(25))
 			screen.print(940,445,gamesAlien[selector].region,1,color.white,color.blue, __ARIGHT)
 			xRoot += w
@@ -93,7 +93,7 @@ function AlienShooter_DLC_Unlocker()
 		end
 
 		if buttonskey then buttonskey:blitsprite(10, 483, saccept) end
-        screen.print(40, 485, LANGUAGE["MENU_INSTALL_INFO"], 1, color.white, color.black, __ALEFT)
+		screen.print(40, 485, LANGUAGE["MENU_INSTALL_INFO"], 1, color.white, color.black, __ALEFT)
 
 		if buttonskey then buttonskey:blitsprite(10,518,scancel) end
 		screen.print(40,522,LANGUAGE["STRING_BACK"],1,color.white,color.black, __ALEFT)

AUTOPLUG2/scripts/psvita/catherine.lua

@@ -8,7 +8,7 @@ if game.exists("PCSG01179") then Catherine = true end
 
 function Catherine_HD()
 
-	if not Catherine then os.message(LANGUAGE["NO_CHATERINE_GAMES"]) end
+	if not Catherine then os.dialog(LANGUAGE["NO_CHATERINE_GAMES"], LANGUAGE["INSTALL_CATHERINE_HD_TITLE"]) return end
 
 	local CATHERINE_ID = "CATHERINEHD.png"
 
@@ -46,7 +46,9 @@ function Catherine_HD()
 			if selector == i then
 				draw.fillrect(xRoot,63,w,42, color.green:a(90))
 			end
-			screen.print(xRoot+(w/2), 75, CatherineTB[i].id, 1, color.white, color.blue, __ACENTER)
+			screen.print(xRoot+(w/2), 75, CatherineTB[selector].id, 1, color.white, color.blue, __ACENTER)
+			draw.fillrect(750,435,200,42, color.shine:a(25))
+			screen.print(940,445, CatherineTB[selector].region, 1, color.white, color.blue, __ARIGHT)
 			xRoot += w
 		end
 
@@ -112,6 +114,13 @@ function Catherine_HD()
 				if scroll:down() then xscroll = 10 end
 			end
 
+			--L/R
+			if buttons.released.l or buttons.released.r then
+				if buttons.released.l then selector -= 1 else selector += 1 end
+				if selector > #CatherineTB then selector = 1
+				elseif selector < 1 then selector = #CatherineTB end
+			end
+
 			if buttons.accept then
 
 				local vbuff = screen.buffertoimage()
@@ -153,7 +162,7 @@ function Patch_Catherine_install(game,res)
 	files.copy(path_plugins..res.path, path_tai)
 
 	tai.put(game.id, path_tai..res.path)
-	ReloadConfig,change = true,true
+	ReloadConfig = true
 
 	if back2 then back2:blit(0,0) end
 		message_wait(LANGUAGE["INSTALLING_CATHERINE_HD_PATCH"].."\n\n"..res.res)

AUTOPLUG2/scripts/psvita/p4golden.lua

@@ -20,7 +20,7 @@ end
 
 function P4Golden_HD()
 
-	if not P4Golden then os.message(LANGUAGE["NO_P4GOLDEN_GAMES"]) end
+	if not P4Golden then os.dialog(LANGUAGE["NO_P4GOLDEN_GAMES"], LANGUAGE["INSTALL_P4G_HD_TITLE"]) return end
 
 	local P4GOLDEN_ID = "PERSONA4GOLDENHD.png"
 
@@ -59,7 +59,7 @@ function P4Golden_HD()
 			if selector == i then
 				draw.fillrect(xRoot,63,w,42, color.green:a(90))
 			end
-			screen.print(xRoot+(w/2), 75, gamesP4[i].id, 1, color.white, color.blue, __ACENTER)
+			screen.print(xRoot+(w/2), 75, gamesP4[selector].id, 1, color.white, color.blue, __ACENTER)
 			draw.fillrect(750,435,200,42, color.shine:a(25))
 			screen.print(940,445,gamesP4[selector].region,1,color.white,color.blue, __ARIGHT)
 			xRoot += w
@@ -183,7 +183,7 @@ function Patch_P4G_install(game,res)
 	tai.del(game.id, "p4goldenhd_1280x720.suprx")
 
 	tai.put(game.id, path_tai..res.path)
-	ReloadConfig,change = true,true
+	ReloadConfig = true
 
 	if back2 then back2:blit(0,0) end
 		message_wait(LANGUAGE["INSTALLING_P4G_HD_PATCH"].."\n\n"..res.res)