Hmm, isn't 13107200 bytes ~ 13Mb? And the products cache is loading 25Mb of product URLs into memory on that line.... Seems a bit low for a PHP to complain at 13 + 25 = 38Mb... Typos? One may want to verify the amount of memory the hosting plan includes for PHP... And check the configured limit in php.ini...
If there are alot of products and limited memory on the server (25Mb of URL data is a fair amount), one can disable the product cache to save memory. When the product cache is enabled, all product URLs are preloaded into memory. When disabled, the generated URLs for products are added on demand into the global cache. When the global cache is disabled, no generated URLs are cached in memory.
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