You should check strategy "Reports" tab to learn which rule is preventing bet placement. Then you should adjust its settings and try again in simulation mode.
You used rule "Football - Bet on next over/under market" that will allow strategy to bet only on over/under X goals markets, but then you set your "Markets filter" to allow betting only on CORRECT_SCORE markets, so that will never work as it is contradictory.
If you want to bet on first favorite at correct score market then you will need to remove "Football - Bet on next over/under market" rule.
Please take time to read the manual to learn how each rule works:
https://www.bfbotmanager.com/en/help/kn ... v3-version