Maybe they don't belong to WMO network any more, I don't know how this works. But they belong to AEMET's network (with other IDs) and can be consulted throw AEMET OpenData API if it's any help.

Hello, thank you for your replies.
It looks to me that AEMET (Spanish agency) has it right.

This is the result of a query to AEMET's Open Data Rest API
{
"idema" : "8058X",
"lon" : -0.095837,
"fint" : "2019-04-22T11:00:00",
"prec" : 2.8,
"alt" : 5.0,
"vmax" : 8.4,
"vv" : 2.8,
"dv" : 301.0,
"lat" : 38.928886,
"dmax" : 336.0,
"ubi" : "OLIVA",
"tamin" : 12.2,
"ta" : 12.6,
"tamax" : 12.6,
"rviento" : 117.0
}

The discrepancy between AEMET -0.095837 (0º 5' 45.0132") and Windy 0º 5' 44" suggests me that Windy is using another source.

Hello, I'd like to know if is there a way to contact a station or report a station misplaced.
Station 08287, station 08290 and station 08282 have the longitude wrong, they are placed east, but their real longitude is west. The number is correct, the sign is on the contrary.