Recently moved from Magento to Shopify, is it possible to maintain access to the Magento Admin platform for personal reasons?

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Hello, as the title suggests. The company I am assisting worked with Magento for many years and recently moved to Shopify for personal reasons. During the host migration, we lost access to our Magento Admin Panel. Is there a way to regain / continue having access to our admin panel? If so, how would we be able to accomplish this? Purchasing another domain and assigning / hosting that second domain for a while.