Write some Software

We have an ecommerce website that has some bugs to be fixed. these are the main ones that we found: 1- Log in by old customer does not work 2- new users can not register or sometimes it says the user already exist 3- when click pay, it does not go to thank you page if paid by wire transfer or pick up payment 4- i pad view most of the pages are viewed have the screen except one 5- no emails were sent to customers to updates their order process 6- no emails were sent to sales representatives 7- no sms messages were sent to sales rep 8- no emails received from customers 9- deleting a link for a wish list and replace it with VIEW YOUR INVOICE- which is the same link as check out now 10- paraphrase the words that appear after the customer click the color and size: from it is available to it is available click the basket to purchase it 11- the basket turns into green color after the phrase "It is available click the basket to purchase it"