diff --git a/src/CHANGES.md b/src/CHANGES.md
index 87e18bb3..d2170bf1 100644
--- a/src/CHANGES.md
+++ b/src/CHANGES.md
@@ -1,5 +1,8 @@
 # Development Changes
 
+## 0.8.117 - 2024-05-09
+* fix reboot issue #1607
+
 ## 0.8.116 - 2024-05-05
 * calculation of max AC power
 * fix counter overflow communication queue
diff --git a/src/app.cpp b/src/app.cpp
index 8ee943da..a92a5f3c 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -481,7 +481,7 @@ void app:: zeroIvValues(bool checkAvail, bool skipYieldDay) {
     }
 
     if(changed)
-        payloadEventListener(RealTimeRunData_Debug, NULL);
+        payloadEventListener(RealTimeRunData_Debug, nullptr);
 }
 
 //-----------------------------------------------------------------------------
diff --git a/src/defines.h b/src/defines.h
index 16b21456..2d3a5ad4 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -13,7 +13,7 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       8
-#define VERSION_PATCH       116
+#define VERSION_PATCH       117
 //-------------------------------------
 typedef struct {
     uint8_t ch;
diff --git a/src/plugins/MaxPower.h b/src/plugins/MaxPower.h
index 34eeaf9f..a8db6909 100644
--- a/src/plugins/MaxPower.h
+++ b/src/plugins/MaxPower.h
@@ -34,6 +34,9 @@ class MaxPower {
             if(RealTimeRunData_Debug != cmd)
                 return;
 
+            if(nullptr == iv)
+                return;
+
             if(iv->id >= MAX_NUM_INVERTERS)
                 return;