Disconnect it from the mains for 10 minutes.
If it is the type with a button, spray it with electrical contact cleaner.
If it has no button, you need to find which micro-switch on each burner is staying closed circuit? It is likely to be the one you used just before it did this. There is help below in video and text.
If the burners are clean and dry and the stove ignition switches are working correctly, it is likely that the spark module is defective and causing the continuous sparking issue. If the spark module is defective, it should be removed and replaced with a new one.
Jun 7, 2021
Sounds like you may have an air restriction or a fuel flow issue. Check the air filters to be sure they are clean and that there is no debris in the carburetor or fuel tank. Then check to make sure the fuel flow path is clear, not blocked with debris or sediment. If those things check out okay then you may need to adjust the carburetor settings for maximum performance.
The bump knob rotates in the direction of the trimmer. you will need a pair of channel lock pliers or equivalent hold head with one hand and try turning knob with pliers first anticlockwise (to the left). if you hold pliers wring the knob will spin, hold pliers so that the bottom handle is on the inside.
The answer likely depends on the model number. Here are some lawn genie manuals. I suspect Ace Hardware would have fuses as they sell the Lawn Genie system. Download the manual, hit CTRL plus the F key, enter "fuse" and if lucky, you may spy what you are looking for. Or the contents page may offer access. Some of the vintage Lawn Genie units have the word "fuse" printed by the fuse, visible when you open the cover. https://www.lawngenie.com/en/product-literature
When the light is solid red, the batteries are charging.
A flashing red LED light indicates that the charger detects abnormal batteries or the battery temperature is abnormal.
When the light is a solid green, the batteries have completed their charge.
Different plants will respond differently to the same kind of artificial light...and there's always the lumens vs freq debate as well.
Your best bet, if you can find no recommendations for what you're growing + your setup/growbox lighting is to start with a general 12-14 hour cycle and then find the specifics for flowering/fruit schedules. You'll most likely have to tailor it as you go, but this will get you started. Good luck!