PHP developer to analyse and fix existing scripts automation scripts.

I'm looking for a proficient PHP developer to analyse and fix existing automation scripts. The main issue I'm currently experiencing is errors in the scripts, particularly those related to data processing. The fixes need to be implemented within a week if possible. These scripts run as cron jobs to e.g. automatically generate a project in Harvest when a deal is accepted in HubSpot. The scripts have been working for many years. Changes required for 2 factor authentication (from API key to bearer token) in accessing the HubSpot API were implemented in March 2023 and, except for one script this was successful. The HubSpot logs show 404 errors since the server had an issue with limited storage last week and now the whole process of automation has stopped functioning.I can provide access to the server via CWP7, which will allow the developer to see everything involved in the setup. Attached is an example of the create-project.php