Are you the account owner? Or were you part of a team, because I read your post history and you seem to be someone with technical experience that would enable him to at least formulate the question more accurately, quote here.
The screenshot makes it easier then, you can do this;
1. Go to electrum, in the derivation path, tick legacy and put m/clientid (m/489) underneath or
2. Use iancoleman.io/bip39 listed above(beware, using this may compromise your seed)
put the seed in the mnemonic box and change the derivation path to bip32, select custom path and put m/client id (m/489).
A private key can generate two addresses and since it starts with K or L (Base58 Wallet Import Format), then inserting it into Electrium will give you the correct address, or the private key you are using is for another address.
based on above quote you already know iancoleman.io and derivation path so I think you know this
