Got stuck and got message: “Step 5 is currently in process. Please reload this page later.” when updating from Nextcloud 18.0.3.0 to Nextcloud 18.0.6.
The system is installed in a Shared Hosting environment and SSH is not possible, therefore Upgrade 17.0.5 → 18.0.3 stuck with “Step 5 is currently in process. Please reload this page later.” solution is not applicable in this case.