Login doesn't work :( I currently created my own CRM in Airtable, and it is basically an automation platform along with CRM. I need that, but not with Airtable

Login doesn't work :( I currently created my own CRM in Airtable, and it is basically an automation platform along with CRM. I need that, but not with Airtables row limits and other issues. I'd love something that has their UX for managing all the customization and expanding it, but also heavy automation options with Zapier and others.