I solved the problem. I was advised by the wallet developer to download the trinity wallet. And enter 81 characters into it. And wala - I got access to my coins thanks to the key.)

Thank you for your attention. Yes, I used this function. I enter 81 characters. Here is a screenshot of the result.
http://joxi.ru/vAWdYyEc1WnWDr

Hello to all.
Faced such a problem in iotawebwallet:
Reinstalled the browser, there was a complete reset of the entrance to the wallet (my wallet is not displayed). Tried to recover. I enter the Name, sid, password - in the answer: please input a valid 81-trytes seed. Although there can be no error in the side - just copied and pasted from a notebook.
Please help. On the coin purse.

Привет, всем.
Столкнулся с такой проблемой в iotawebwallet:
Переустановил браузер, произошёл полный сброс входа в кошелёк(не отображается мой кошелёк). Попытался восстановить. Ввожу Имя, сид, пароль - в ответ  Please input a valid 81-trytes seed. Хотя в сиде не может быть ошибки - просто скопировал и вставил с блокнота.
Прошу помочь. На кошельке монетки.

Helped me in the community. I took the very first backup file from the folder bacups. I copied it to my wallet folder and renamed it to walett.dat. Restarted wallet - and lo and behold! My wallet appeared with balance! ))
Thanks for the help!

Thanks for your reply. I have the latest version of the wallet and OS Windows7. I deleted all the files except what you said. The wallet is loaded. But my balance and transaction is not ((All blocks are synchronized to the last.

Hello. I have a problem with a PAC wallet. Does not open. Error window appears:
Incorrect or no genesis block found. Wrong datadir for network?
Please help me.