Part 107 UAS pilot reported flying without LAANC authorization. Once they confirmed their LAANC authorization had expired they landed the UAS.

Narrative

I was scheduled to fly a real estate photo project within the Airport Restricted Area. Before leaving for the site; I opened a LAANC [approval] through a LAANC UAS Service Supplier app with a 200 foot limit. It took several attempts since I was getting error messages. I was successful once I signed off and back on. I also requested a Geo Zone unlock from DJI through the [DJI] FlySafe App. I was approved and thought I had successfully imported it to the drone. I had only done this once before and had trouble with it that time as well. When I arrived on site; the drone would takeoff and I had several warning about the area; but I was able to continue. The drone was not operating as usual in that I could not move over the western side of the property. I landed and attempted to use my cellphone hot spot to reload the unlock feature from DJI. When it did not seem to work; I departed the area.Once back in Wifi environment; I reached out to DJI; but they wanted me to email another department. A few hours later; without a response; I tried again and was able to download and import the unlock feature. I returned to the photo site and took after. The drone was operating normally and I continued with the project. It then came to me that I should check the duration of previously approved LAANC [approval]. With the drone hovering overhead; I opened the LAANC [approval] and discovered it had expired. I tried to file another LAANC [approval] via Air Control. I had been successful filing a LAANC [approval] in the field in the past. But I was once again receiving an error message. I landed the drone and departed the area. Once home I attempted again to open a LAANC [approval] for the following day; only to receive an error message. I have advised the LAANC UAS Service Supplier app of my issues and have signed up for another LAANC provider.