Jarda Merta

Problem is that device ( Skywatcher Maksutov telescope MC 127/1500 Sky Max BD AZ-S GoTo) wrote on the display that 2 stars alignment was successful, but qiuckly appeared the caution: Previous NPE is applied. And the device stoped here and I cannot move forvard. Any way only leads to new 2 stars alignment . On your forum I read the advice to ignore this causion notice, but I cannot do it, or I dont know how to skip this notice. Please, can you help me with this problem? Thank you Jarda