A PHP Error was encountered

Severity: Core Warning

Message: PHP Startup: Unable to load dynamic library 'mapi.so' (tried: /usr/lib/php/20170718/mapi.so (/usr/lib/x86_64-linux-gnu/libgnutls.so.30: symbol _idn2_punycode_decode version IDN2_0.0.0 not defined in file libidn2.so.0 with link time reference), /usr/lib/php/20170718/mapi.so.so (/usr/lib/php/20170718/mapi.so.so: cannot open shared object file: No such file or directory))

Filename: Unknown

Line Number: 0

Backtrace: