Error in creating reference metabolome

I am trying to use the ‘enrichment analysis’ tool to perform over-representation analysis. I keep getting an error when trying to upload the reference metabolome (see below). It indicates that the HMDB ID’s cannot be matched, but this doesn’t make sense because I had used MetaboAnalyst to create the list so I know all of these ID’s are included in the MetaboAnalyst database. It is no better if I input the common names. This error has been present for several months - please help!
Elvira

Error

Possible causes of error (last one being the most relevant):

Over half of your uploaded IDs cannot be matched to our database! Please make sure they are valid HMDB names!

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