4 years everything was working ok running user manager at a windows pc with virtualbox. no corruptions no problems even with power outages.
i suggested my customer and we bought a rb1100ahx4 level 6 and i install a 16gb sd card.
today (10 days operation) problems started you can see in attachments.
even i reset user manager and started from scratch after 1 hour happened the same. could not access user manager web interface and customers could not logon with the vouchers.
tomorrow i am going to change sd card.
any other suggestion would help. thanx.