You do not need to go to immigration on the originally scheduled date of your 90-day check, as your 90-day reporting period restarts from the date of your reentry into Thailand. Therefore, your new 90-day count begins on April 26th when you reentered Thailand.
90 DAY REPORTING RESOURCES / SERVICES
Use the trusted Thailand 90 Day Reporting Service to get your in-person report done and mailed to you for as low as 375 THB (even if the online system doesn't work for you).
For immediate assistance, contact Thai Visa Centre directly via LINE at @ThaiVisaCentre or Email them.