このエラーメッセージに関する原因と対処に関して説明します。
エラーメッセージ(英語)：
sns error code
対処
関連リンク
【新機能】AWS LambdaがDead Letter Queueをサポートしました ...
https://dev.classmethod.jp/cloud/aws/lambda-supports-dead-letter-queue/
Unable to configure dead letter queue on custodian lambdas with c7n ...
https://github.com/cloud-custodian/cloud-custodian/issues/2651
Raypak Pool and Spa Repair Questions, Solutions and Tips - Fixya
http://www.fixya.com/troubleshoot/raypak/pool-spa
20 Most Recent Raypak 010104 P-R336A-EN-X 50 Natural Questions ...
http://www.fixya.com/support/p9915171-raypak_010104_p_r336a_en_x_50_natural_ga
I had a new raypak pc board kit #010253f for a rp2100 put on my pool ...
https://www.justanswer.com/pool-and-spa/4y6ge-new-raypak-pc-board-kit-010253f-rp2100-put.html
I have Raypak pool heater p-m406a-en-x for pool & spa. Turned it on ...
https://www.justanswer.com/pool-and-spa/52owp-raypak-pool-heater-p-m406a-en-x-pool-spa-turned.html