Finally fixed the ssl issue on andorid by updating openssl to v1.1.1

android-sources/AndroidManifest.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <manifest package="com.itsblue.flgvertretungtest" xmlns:android="http://schemas.android.com/apk/res/android" android:versionName="1.0.2" android:versionCode="16" android:installLocation="auto">
-    <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="28"/>
+    <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="28"/>
 
     <!-- The following comment will be replaced upon deployment with default permissions based on the dependencies of the application.
          Remove the comment if you do not require these default permissions. -->

fannyapp.pro

@@ -18,7 +18,6 @@ TEMPLATE = app
 TARGET = fannyapp
 
 ICON = shared/graphics/favicon.icns
-RC_ICONS = shared/graphics/favicon.ico
 
 SOURCES += \
     sources/serverconn.cpp \
@@ -55,10 +54,10 @@ else: unix:!android: target.path = /opt/$${TARGET}/bin
 android {
     QT += androidextras
     ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android-sources
-    LIBS += "$$PWD/android-sources/libs/armeabi-v7a/libssl.a"
-    LIBS += "$$PWD/android-sources/libs/armeabi-v7a/libcrypto.a"
 }
+
 win {
+    RC_ICONS = shared/graphics/favicon.ico
     LIBS += "$$PWD/windows-libs/libeay32.dll"
     LIBS += "$$PWD/windows-libs/ssleay32.dll"
 }
@@ -69,7 +68,5 @@ ios {
 
 DISTFILES += \
     android-sources/AndroidManifest.xml \
-    CHANGELOG.md \
+    CHANGELOG.md
-    $$files(shared/icons/*.png, true) \
-    shared/icons/ibmaterial/index.theme