trial of this product expired error

Hi for sharepoint foundation team site today I am getting error as trial of this product expired error.I am able to open only settings page in team site and can view site collection in central admin.I did solutions like 1 checking application pool account as part of local administrator group and all started in iis management 2 run the products configuration command for registry errors 3 unchecked the rule definition of trial expired in central admin health analyzer issues

still no luck

Please help me