Kmy Money fails to import a file

Hello,
I received this weird error message while attempting to import KMyMoney file. What’s wrong with this? Can you tell me in detail the main cause of this problem? Please share some ideas to resolve this annoying error message. I would be grateful to you for any assistance.

Importing error – Kmy Money
Unable to import /tmp/kde-steve/kmymoney2quj4Gb.tmp using the OFX importer plugin. The plugin returned the following error:
STMTRNRS: General error (Code 2000): Error other than those specified by the remaining error codes. (Note: Servers should provide a more specific error whenever possible. Error code 2000 should be reserved for cases in which a more specific code is not available.) (A Field contained invalid characters for that Field-Type)
