GD all

While band hopping, my station heard/decoded some remote stations but were not automatically uploaded.
I tried to manually upload them using the old db interface but got an error.

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Input: 151006 0556 1 -25 -3.2 14.0971052 U7E/9G2ZLG 30 0 1928 39
Invalid grid ''
Input: 151006 0548 1 -21 1.3 14.0971324 8K4/LX5NLP 17 0 7215 -12
Invalid grid ''
0 out of 2 spot(s) added
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Can't determine if the call is valid, google doesn't give any valid leads.
Or is this a SW mis decode?
Im using an official "experimental WSJT-X v1.6.1, r5910" release.

TNX