Fix Crypto Wallet Address 500 Error (GitLab Experience Required)

I am looking for an experienced developer to diagnose and fix a cryptocurrency payment issue on my live platform. Current Issue: When a user attempts to generate or retrieve a cryptocurrency wallet address for deposits, the system returns a 500 Internal Server Error instead of displaying the wallet address. Requirements: • Experience with cryptocurrency payment gateways and wallet integrations • Strong debugging and troubleshooting skills • Experience with APIs and server-side errors • GitLab experience is required • Ability to identify the root cause and implement a permanent fix Scope of Work: • Investigate the 500 error • Fix wallet address generation/retrieval • Verify all supported cryptocurrencies are functioning correctly • Test the entire deposit process • Deploy fixes through GitLab • Document the cause of the issue and the resolution Please include: • Similar crypto projects you have worked on • GitLab experience • Estimated turnaround time • Estimated cost This is a production platform and I would like someone who can start immediately.