Error !

ZeroDivisionError: integer division or modulo by zero

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                                        minic=perfdic['minic'], maxic=perfdic['maxic'], minadv=perfdic['minadv'],
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                                        maxadv=perfdic['maxadv'], minneg=perfdic['minneg'], maxneg=perfdic['maxneg'],
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                                        minpct=perfdic['minpct'], maxpct=perfdic['maxpct'], sumic=sumic, sumadv=sumadv,
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                                        sumplc=sumplc, moyneg=round(float((sumpts - sumtop) / len(ics)), 0),
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                                        moypct=round(sumpts * 100.0 / sumtop, 2)).encode('utf-8', 'replace'))
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    except:
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        print(exceptions.html_error_template().render())
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ic.py, line 387:
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sumplc=sumplc, moyneg=round(float((sumpts - sumtop) / len(ics)), 0),