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This is known problem of connector versions and older and is caused by illegal non-ascii characters in text strings (i.e. Product name, Product description etc.).


  • Problem was solved in connector version Therefore, if you are experiencing this error, we encourage you to upgrade to the latest connector version.
  • However, in some rare cases source code modification is needed, according to your server settings - see 
    serverNoStress Developer


In version new directive was introduced to connector configuration page. This option is called Regular expression for illegal characters removal and allows you to insert hexadecimal representations of illegal characters, causing this error.