Issues with Portfolio categories on Salient theme

I have issues with my Portfolio categories on Salient theme
I have elements of my portfolio which no longer appear in the categories… The categories do exist, the pages of my work have also disappeared but the elements which no longer appear no longer seem to be allocated to the categories.
Take a look for yourself… I Do – IamGaëlle:)
You will understand: click for example on the “3D” or “Social Networks” category… they are empty but the pages of the elements which appeared in these categories do exist. I went to the page editor and nothing has changed, the categories are nevertheless checked.
Do you know how I can fix this? It must be the update of the theme or WordPress that caused the thing to glitch

Thanks in advance and sorry for my english


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