Error After installation!

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Im having this error and its displaying in my website

"Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in /hermes/bosnaweb01a/b1413/nf.vellher2/public_html/kioki/admin/libraries/joomla/database/database/mysqli.php on line 263"

I uninstall an Installed again but did not work!
Responses (6)
  • Accepted Answer

    Monday, May 19 2014, 03:44 PM - #Permalink
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    Where do you receive this message?
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  • Accepted Answer

    Monday, May 19 2014, 03:48 PM - #Permalink
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    here.. also in the user menu I did!

    "administrator/index.php?option=com_invoices"
    Attachments:
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  • Accepted Answer

    Monday, May 19 2014, 03:50 PM - #Permalink
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    now that I see the screenshot, I can tell you that this error can appear if you had installed another version (older) of Invoice Manager on that site, and then you installed this new one on the site.

    although this makes no sense because you just purchased it today, there's no record of a previous purchase from you...
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  • Accepted Answer

    Monday, May 19 2014, 04:01 PM - #Permalink
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    Thank you for your quick response, but the only thing I tried tu installed is the spanish language! and this component called pay invoice from playplans...
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  • Accepted Answer

    Monday, May 19 2014, 04:19 PM - #Permalink
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    Error is gone! ... I uninstalled PayInvoice from PayPlans and Invoice Manager , then Reinstalled only Invoice Manager and It worked... thank you!
    My internet connection is going down constantly... maybe thats the problem.. I´ll wait until its better!
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  • Accepted Answer

    Monday, May 19 2014, 04:24 PM - #Permalink
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    Its impossible the site its one day old! ..... I appreciate the quieck response... amazing support!
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