For my replicator 5th gen, I'll be printing, but than it will error out and say the smart extruder is detached, than I just have to press okay and than it heats up and continues, but it literally stops every 2 minutes to do this, any tips to fix?

and with my Z18, I started a print, and when i came back it said the print was 100% finished, but it wasn't, it only printed about halfway through, but it said it was 100%.

any tips?