re entering Kuwait on tourist visa

so I’ll be in Kuwait on may 16 and my return flight is August 21. I kept it that way because I’ll be going to bahrain and then re enter on a second tourist visa so I thought it’ll be okay. but now I’m trying to apply online for an e-visa and it doesn’t work so I’m guessing I’ll have to get it on arrival. should I move my ticket back because I don’t have proof of travel to Bahrain yet because it will probably be by road so Idk if it can be a problem for immigration. Please let me know if anyone knows anything.