ID Conflict

I have used this plugin in tabs format of contact 7.
In photos section add images button is working.
In video section add video button not working.
I think there is a problem of id which creating same in both form

<div id="mfcf7_zl_multifilecontainer">
<span class="mfcf7-zl-multiline-sample" style="display:none"></span>
</div>

Kindly check and provide the solution, to crate id different in upload button

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