# Frequently Asked Questions ### Errors in Logs or Console Certain errors may be reported by your node. See a sample below: {% code overflow="wrap" %} ``` 2022-10-10T18:30:42.571Z WARN keep-beacon beacon/node.go:78 selecting group not possible: [cannot select group in the sortition pool: [got error [execution reverted: Sortition pool unlocked] while resolving original error [execution reverted: Sortition pool unlocked]]] {"seed": "0x29c60250c292e108e6abf4dcc76cb161d8ae8e803c4d4419eaff6e97f514b080"} ``` {% endcode %} {% hint style="info" %} This warning is normal and may happen. It will disappear and reappear periodically. {% endhint %} When the pool is locked, new operators cannot join but sortition (selecting operators from the pool) is possible. When the pool is unlocked, new operators can join but the sortition is not possible. Once the first set of Signers is registered, the pool will get locked for some time to allow the sortition. After some time, when another set of Signers are added, the pool will be unlocked again. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.threshold.network/tbtc-signer-nodes/tbtc-v2-node-setup/frequently-asked-questions.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.