Hey @RaBor
Thanks for writing in to us here 🙂.
There is a reported issue with autofilling the password on this site previously. I'll go ahead and add your voice to the open issue we have with our dev team.
In the meantime, are you logging in as a customer of Booking.com or as a property owner? Here are the two logins I'm referring to:
* https://account.booking.com/sign-in?op_token=EgVvYXV0aCJHChQ2Wjcyb0hPZDM2Tm43emszcGlyaBIJYXV0aG9yaXplGhpodHRwczovL2FkbWluLmJvb2tpbmcuY29tLyoCe31CBGNvZGUqEjDY8_eB0sYlOgBCAFjsgMKTBg
* https://account.booking.com/sign-in?op_token=EgVvYXV0aCLdAgoUdk8xS2Jsazd4WDl0VW4yY3BaTFMSCWF1dGhvcml6ZRo1aHR0cHM6Ly9zZWN1cmUuYm9va2luZy5jb20vbG9naW4uaHRtbD9vcD1vYXV0aF9yZXR1cm4q_AFVcm9CY2JJYUxKMFdfN0tVaXI3Q1ZuU2xnemd6alY2WThOdlJUemdCUGNZeTMwLW9oZ1kzZVZFWVZNTWZHVmVpd2EwcWMwYUNDRnRmWGVaNDBGeHVGTFZNRVZJZmZ5MkJiSVdsWWhzcG80bW9GYWtqMDh3TEVYdTFnMllKcy1JOW5wOEh4SDNFdnRrZ1A1RFRFMTNwVnVFUjJLMjVhMkhpVE9WdFRxYkxpSHktWkF6RHN4N0p4UmJNOUMwWFdHTmZ1c3NVby1ScEdTd1paLWRTSmxtdnZWSnNmcWNHVGdFdjRQOUdCcjhDM2tnLTk4aGpIbk9QVi1JRHRUZW1CBGNvZGUqFgiOyBIwwcTmx9vGJToAQgBYg4HCkwY
Let me know and I'll try to assist with a workaround as best I can. Thanks!
ref: dev/core/core#204