Cloudflare purge_cache 1105

Hello,
What could be the reason to receive 1105 html error pages from API response https://api.cloudflare.com/client/v4/zones/${zone_id}/purge_cache

Axios request config

{"transitional":{"silentJSONParsing":true,"forcedJSONParsing":true,"clarifyTimeoutError":false},"transformRequest":[null],"transformResponse":[null],"timeout":0,"xsrfCookieName":"XSRF-TOKEN","xsrfHeaderName":"X-XSRF-TOKEN","maxContentLength":-1,"maxBodyLength":-1,"headers":{"Accept":"application/json, text/plain, */*","Content-Type":"application/json","Authorization":"${TOKEN}","Host":"api.cloudflare.com","User-Agent":"axios/0.22.0","Content-Length":49},"method":"post","url":"https://104.19.192.29/client/v4/zones/${ZONE_ID}/purge_cache","data":"{\"prefixes\":[\"mydomain.com/url"]}"}

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          <span class="cf-error-type" data-translate="error">Error</span>
          <span class="cf-error-code">1105</span>
          <small class="heading-ray-id">Ray ID: 72717c3469f42a0c &bull; 2022-07-07 15:07:11 UTC</small>
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        <h2 class="cf-subheadline" data-translate="error_desc">Temporarily unavailable</h2>
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    <span class="cf-footer-item sm:block sm:mb-1">Cloudflare Ray ID: <strong class="font-semibold">72717c3469f42a0c</strong></span>
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