USG60 Logging Problem

Hello. I have USG60 firewall who work whitout problem few months. I was not logging via WEB from one months and today i have issue. I log with user and password and firewall start "LOADING" and that is.... Not log to web EASY or NORMAL MODE. I try with different browsers (Edge, Firefox and Chrome) but result are same. Firewall work, i have no problem with working condition or configuration. When i ask to log via SSH, i log on to firewall but still no have WEB ACCESS. I reboot device via SSH but have no result. Any ideas about that?