Must be an error coin, it's upside down!!! No, seriously folks, the cracks are usually meaningless for non-pristine foreign coins, but sometimes worth something for collectors of error coins.
Metallurgical issues with the coin would not be too uncommon given that it was minted when Denmark was occupied by the fascists.
Denmark, 1941, 1 Krone, KM#824.2 , metal-aluminum-bronze, mintage-661,000 , grade/value F12-$10 VF20-$17.50 XF40-$50.00 MS60-$200.00 MS63-$275 not sure what your coins grade is VF ?
The "cracks" look like laminations, so it's an error coin. I don't believe the lamination hurts the value, but like minor US lamination errors, it really doesn't add anything significant. Overall, a cool error coin
The laminations are very common on Danish coins of this type. I can't say that they hurt the value, but not having them certainly does increase it