after command make I call command `sudo insmod example1.ko` , I am insertig password and then I had error like this
 `insmod error: could not insert module example1.ko: Invalid module format`.
My version of ubuntu is `5.8.0-44-generic` and version of my example1.ko is `5.8.0-38-generic`.
 Maybe these version should me same? I have been trying change in my Makefile from `/lib/modules/($ shell uname -r)/build` to `/lib/modules/5.8.0.-38-generic/build` but still was the same error.
I have no idea how to fix this problem.

I used command `dmesg` to search more information about problem and I found some errors

```none
example1: version magic '5.8.0-38-generic SMP mod_unload' should be '5.8.0-44-generic SMP mod_unload'
```

and there are more six lines with same problem and two errors `Failed to send host log message`.

 My Makefile file looks in this way :
```
obj-m := example1.o

default:
 make -C /lib/modules/5.8.0-44-generic/build M=$(PWD) modules
clean
 make -C /lib/modules/5.8.0-44-generic/build M=$(PWD) clean

```

I ran `make clean ; make` but it had no effect.