Form Fields Event - It is not working

Dear Sirs
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I think it has some bug in the chronoconnectivity events because I tried to use the events below but they are not working, could you help me please?
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Thank you

Hi mauropiro ,
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The [] characters are not allowed in HTML IDs, please change those to e.g. cf_ccf_conta
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Note: the Names are OK and should not be changed.
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Bob