BIP39 means Bitcoin Enhancement Proposal 39. The words are selected from a selected list of 2048 frequent English words which may be used to the make a binary seed (your personal crucial). Meticulously evaluate your recovery phrase for any typos or spelling glitches. Even one error can trigger this error. https://bookmarkfly.com/story19044742/new-step-by-step-map-for-bip39-english-words