Complete procedures with a way back.

Terraform Error: Provider configuration not present means state still associates one or more managed resource instances with a provider configuration address that the current root module can no longer supply. The missing object may be a deleted child-module provider block, a removed alias, an absent module call, or a changed provider source. Repair the execution context before planning any infrastructure change.

Terraform Error acquiring the state lock means the configured backend refused a potentially state-writing operation because another lock exists or the lock service is unavailable. The safe response is to identify the exact backend, workspace, lock owner, and active run before considering force-unlock.

Compare protected refresh-only and normal plans, classify authority and impact, contain incidents, accept reality in HCL or restore intent through a saved plan, and verify full convergence without automatic apply.

Adopt existing provider objects through Terraform 1.15 import blocks, stable addresses, optional reviewed generated HCL, import-only saved plans, protected state, and a mandatory empty post-import plan.