I've had my smok qbox for two weeks and then it started saying high ohms or no atomizer what can I do
Welcome and glad you joined.
There are many ways this type of equipment can fail.
Could contact:
Local Vape Shop -----Might be simple.
Vendor who sold it ---see if they will repair or replace or advise (any authorized distributor).
Manufacturer contact ---see if they will repair or replace or advise.
Most distributors and manufacturers have a 45 day (some months) return policy.
I find it's best to contact the manufacturer and/or the distributor. Your equipment may be under warranty and you may be entitled to a no charge replacement.