Oh my, sorry, I thought that the link from ChromeKeePass directs to itself, but it directed here and I didn't checked it. Sorry, it's not the bug of KeePass but the bug of ChromeKeePass. You can close this topic, sorry again and thanks for the quick reply! ;)
Somehow I found that the page crashes on the load of an Atlassian Jira Service Desk customer portal page. Starts to load infinitely one asset of the page which causes that impossible anything to select or type, later the chrome says that the page isn't answer. I cleard everything from my chrome (reset) and started the plugins one-by one. I found that even if only KeePass allowed, it crashes the page, any other way it works perfectly.