Magento2 Problem Fix

We have a website built on Magento2 ver 2.4.6-p6.

The website keeps crashing due to a cache problem. The Cache is filling up, causing the server to run out of space and causing the site to run very slow and crash. Our current developers have tried to resolve this but have been unable to, mainly because they no longer have a full Magento developer to assist them.

Looking for someone who will be able to resolve this issue and ensure it doesn't happen again moving forward. Unsure of required budget.

I was showing an index error:
INDEX ERROR:
Catalog Search index process error during indexation process:
{"error":{"root_cause":[{"type":"cluster_block_exception","reason":"index [magento2_product_1_v345] blocked by: [TOO_MANY_REQUESTS/12/disk usage exceeded flood-stage watermark, index has read-only-allow-delete block];"}],"type":"cluster_block_exception","reason":"index [magento2_product_1_v345] blocked by: [TOO_MANY_REQUESTS/12/disk usage exceeded flood-stage watermark, index has read-only-allow-delete block];"},"status":429}