There is an issue with placing a period in the title of an ad.
If your ad title is something like "2002 Volvo XC70 3.2 AWD", then it is possible that when the system converts the title, the period between the 3 and 2 causes the issue. The quick fix is to simply remove the reference to the engine size (3.2) and place that in the description of the ad.
If you happen to see a banner with the message below displaying across your screen, your computer has been identified as having generated spam.
You may not be aware of this, but your computer may have been hijacked by a spambot and is being used as a zombie spam generator. This is not a joke.
Your IP address has recently been identified as a spammer. Your computer may be infected. Please use one of these free anti-virus scanners to detect and clean your computer: Microsoft Safety Scanner, HouseCall TrendMicro or Malwarebytes AntiMalware. You are seeing this message because this web site takes part in Project Honey Pot to fight spam. This message will continue to show up 8 days after the last time your IP was reported, even after you disinfect it.