At first I thought some hardware issue, maybe reboot will fix it. It didn't. Googled and saw this page. And, yes, I recently upgraded to 15.1 too.
marcremijn
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I have the same kind of error. It's the same as the one of c4stus above:
Unable to install "Concentration"
Domain: com.apple.dt.MobileDeviceErrorDomain
Code: -402620415-
An unknown error has occurred.
Domain: com.apple.dt.MobileDeviceErrorDomain
Code: -402620415
User Info: {
		DVTRadarComponentKey = 280331;
		MobileDeviceErrorCode = "(0xE8008001)";
		"com.apple.dtdevicekit.stacktrace" = (
0	 DTDeviceKitBase										 0x000000011eca981a DTDKCreateNSErrorFromAMDErrorCode + 233
1	 DTDeviceKitBase										 0x000000011eceaf70 __90-[DTDKMobileDeviceToken installApplicationBundleAtPath:withOptions:andError:withCallback:]_block_invoke + 155
2	 DVTFoundation											 0x00000001069e0155 DVTInvokeWithStrongOwnership + 73
3	 DTDeviceKitBase										 0x000000011eceaca8 -[DTDKMobileDeviceToken installApplicationBundleAtPath:withOptions:andError:withCallback:] + 1654
4	 IDEiOSSupportCore									 0x000000011eb61e91 __118-[DVTiOSDevice(DVTiPhoneApplicationInstallation) processAppInstallSet:appUninstallSet:installOptions:completionBlock:]_block_invoke.352 + 4165
5	 DVTFoundation											 0x0000000106b137f4 DVT_CALLING_CLIENT_BLOCK + 7
6	 DVTFoundation											 0x0000000106b15436 __DVTDispatchAsync_block_invoke + 1194
7	 libdispatch.dylib									 0x00007fff730826c4 _dispatch_call_block_and_release + 12
8	 libdispatch.dylib									 0x00007fff73083658 _dispatch_client_callout + 8
9	 libdispatch.dylib									 0x00007fff73088c44 _dispatch_lane_serial_drain + 597
10	libdispatch.dylib									 0x00007fff730895d6 _dispatch_lane_invoke + 363
11	libdispatch.dylib									 0x00007fff73092c09 _dispatch_workloop_worker_thread + 596
12	libsystem_pthread.dylib						 0x00007fff732dda3d _pthread_wqthread + 290
13	libsystem_pthread.dylib						 0x00007fff732dcb77 start_wqthread + 15
);
}-
System Information
macOS Version 10.15.5 (Build 19F101)
Xcode 11.5 (16139)