G-code motion target exceeds machine travel on Genmitsu 3180 PROVER

When looking for specs on this machine it listed the “Effective Engraving Area” as 260 x 155 x 35mm so fairly close. Not sure if the Prover model is diff than non Prover models.
Genmitsu 3018-PROVer Semi Assembled CNC Router Kit – SainSmart.com