Fix crash around charge curve (#2816)

* Fix inverter crash

* Missing settings

* [pre-commit.ci lite] apply automatic fixes

---------

Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>

Author: springfall2008

apps/predbat/inverter.py

@@ -527,6 +527,10 @@ def find_charge_curve(self, discharge):
 
         final_curve = {}
         final_curve_count = {}
+        soc_kwh = []
+        charge_rate = []
+        battery_power = []
+        predbat_status = []
 
         if discharge:
             max_power = int(self.battery_rate_max_discharge * MINUTE_WATT)

apps/predbat/predbat.py

@@ -25,7 +25,7 @@
 import requests
 import asyncio
 
-THIS_VERSION = "v8.26.2"
+THIS_VERSION = "v8.26.3"
 
 # fmt: off
 PREDBAT_FILES = ["predbat.py", "config.py", "prediction.py", "gecloud.py","utils.py", "inverter.py", "ha.py", "download.py", "unit_test.py", "web.py", "web_helper.py", "predheat.py", "futurerate.py", "octopus.py", "solcast.py","execute.py", "plan.py", "fetch.py", "output.py", "userinterface.py", "energydataservice.py", "alertfeed.py", "compare.py", "db_manager.py", "db_engine.py", "plugin_system.py", "ohme.py", "components.py", "fox.py", "carbon.py"]