I dont know whats wrong with your electrum, but I can tell you that all the transactions. You created require your first (without fee) to get confirmed first.

If you look here -> https://blockchain.info/tx/99403293ed5cac1c25bc7e437a72935137e47cea257cb177797a4e1a0cd85596?show_adv=true

you can see that the output of the first transaction is spend. If you click on the red word you get to your 2nd transaction -> https://blockchain.info/tx/2fcb68fb8a2b07c44e1534f24799a9681f36d5827dc79308af929aae90b7a730

and finally to your 3rd -> https://blockchain.info/tx/8dafc2708f3df20e075a587f4a0f2d4c25e2a4cdf6914cef7c9f0e1ea0fda13f

Once the first confirms all others will confirm as well or shortly afterwards.

All you can do now is wait. Either for the network to forget about your transactions (takes a few days) or for them to confirm (might take more than a few days).

Oh and you should update electrum to 2.5(.1)