Estou recebendo o erro abaixo quando tento iniciar o apache2 no Ubuntu. Eu tenho reinstalado o Apache no servidor.
/usr/lib/x86_64-linux-gnu$ service apache2 start
* Starting web server apache2 *
* The apache2 configtest failed.
Output of config test was:
/usr/sbin/apache2: error while loading shared libraries: /usr/lib/x86_64-linux-gnu/libapr-1.so.0: invalid ELF header
Action 'configtest' failed.
The Apache error log may have more information.