# cktestBTC canister error

**URL:** <https://forum.dfinity.org/t/cktestbtc-canister-error/33731>\
**Category:** Developers\
**Created:** [July 31, 2024, 1:19am UTC](https://forum.dfinity.org/t/cktestbtc-canister-error/33731 "2024-07-31T01:19:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mozhiyun](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/mozhiyun/32/18476_2.png) [@mozhiyun](https://forum.dfinity.org/u/mozhiyun)\
**Post date:** [July 31, 2024, 1:19am UTC](https://forum.dfinity.org/t/cktestbtc-canister-error/33731/1 "2024-07-31T01:19:55Z")

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Hello, The cktestBTC canister is currently unavailable. this is the error message:

> [fetch\_main\_utxos]: failed to fetch UTXOs for the main address tb1q7264a572m6el0ephpds564x447r8t0d64pppen: management call ‘bitcoin\_get\_utxos’ failed: canister error: IC0536: Error from Canister g4xu7-jiaaa-aaaan-aaaaq-cai: Canister has no update method ‘bitcoin\_get\_utxos’…\nCheck that the method being called is exported by the target canister. See documentation: [Execution errors | Internet Computer](http://internetcomputer.org/docs/current/references/execution-errors#method-not-found)

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**Author:** ![dsarlis](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/dsarlis/32/689_2.png) [@dsarlis](https://forum.dfinity.org/u/dsarlis)\
**Post date:** [July 31, 2024, 7:21am UTC](https://forum.dfinity.org/t/cktestbtc-canister-error/33731/2 "2024-07-31T07:21:38Z")

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The unavailability is actually on the Bitcoin testnet canister (which cktestBTC is using when settling transactions on the bitcoin testnet network). The reason is that we’re doing a re-bootstrap of the Bitcoin testnet canister to get it unblocked because it was in a state that was unupgradable. You can read more in the relevant [proposal](https://dashboard.internetcomputer.org/proposal/131409).

We expect that the canister will be back to business in the next couple of days.

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**Author:** ![dsarlis](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/dsarlis/32/689_2.png) [@dsarlis](https://forum.dfinity.org/u/dsarlis)\
**Post date:** [August 2, 2024, 7:00am UTC](https://forum.dfinity.org/t/cktestbtc-canister-error/33731/3 "2024-08-02T07:00:05Z")

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FYI, the Bitcoin testnet canister is again fully synced with the tip of the network and should be functional.

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**Author:** ![mozhiyun](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/mozhiyun/32/18476_2.png) [@mozhiyun](https://forum.dfinity.org/u/mozhiyun)\
**Post date:** [August 2, 2024, 8:16am UTC](https://forum.dfinity.org/t/cktestbtc-canister-error/33731/4 "2024-08-02T08:16:38Z")

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Yes, we have found it, thank you very much.