Check to see if your k-cup is seated correctly in the chamber. It may just be out of position and the needle is not puncturing the device properly.
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Check to see if your k-cup is seated correctly in the chamber. It may just be out of position and the needle located where the k-cup is placed is not puncturing the device properly.
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The needle of your Keurig may also be clogged, you should clean it off if the problem persists.
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The needle of your Keurig may also be clogged with coffee grinds and gunk, you should clean it off with a cotton swab if the problem persists.
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Check out [https://www.ifixit.com/Wiki/Keurig_K40_Troubleshooting?revisionid=HEAD#Section_Incorrectly_Positioned_K_cup|this] troubleshooting guide if you need more assistance.
Check to see if your k-cup is seated correctly in the chamber. It may just be out of position and the needle is not puncturing the device properly.
The needle of your Keurig may also be clogged, you should clean it off if the problem persists.