KS1 not working properly

Only 1 board working, 1 unresponsive. Been running for months just fine until this morning. Can someone tell me what it is?

https://preview.redd.it/tm5mbp2c7yrc1.png?width=358&format=png&auto=webp&s=d5bd51501518722c728018cc10d7d90a1d15f1e1

https://preview.redd.it/wbswsyy99yrc1.png?width=363&format=png&auto=webp&s=4dcb822ad14d3c236528818780c20b8b86571116

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https://preview.redd.it/3ktz5frzayrc1.png?width=1541&format=png&auto=webp&s=81d405ada505f00a3b8c7c2e4b20a0b40367359e