This LIPID MAPS identifier is used in WikiPathways but it does not have a known entry in Wikidata.
If the used LIPID MAPS identifier exists in LIPID MAPS, then there is nothing wrong with WikiPathways and no curation is needed in WikiPathways.
This test fails if the latest BridgeDb metabolite identifier mapping does not have a mapping. The cause can be that the lipid is not listed in Wikidata yet, or that the BridgeDb file did not capture it yet.
This test is really aimed a curation of Wikidata and LIPID MAPS. You can check if the lipid is found in Wikidata with this Scholia URL pattern: https://scholia.toolforge.org/lipidmaps/LMFA03020002.
If it is there, then the BridgeDb metabolite ID mapping database may be too old. You can encourage the development team in this issue tracker to make a new release.