How to fix unknown item in Brickstock when I open bsx file?

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1 step : Press Yes to check what part was changed ID in Bricklink.
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2 Step : It shows 3069px5 can't match the ID in Bricklink.
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3 Step : Open "https://rebrickable.com" website and insert the part 3069px5 on the top of the right search box.
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4 Step : This site shows the detail on the right column. Now we can changed Brick ID in brickstock now (3069bpx5)
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5 Step : Press Find Item bottom and insert 3069bpx5
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6 Step : Also insert 3069bpx5 in Filter to find correct part ID, after choose 3069bpx5 and press ok to fix this part ID.
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7 Step : Press Ok to finish this step.
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8 Step : This part can shows correctly in Brickstock now.