Call to undefined function Mpdf\mb_regex_encoding() while generating PDF's

[Shaquille_Daniel]

Hi All,
Im new to Invoice Plane and I am having some issues with generating my PDF’s. I enabled mbstring in my php.ini as well as downloaded the php-mbstring but im still getting this error, can some one please assist?
PS Im running this on a CLI linux virtual server that I am hosting on my local machine.

An uncaught Exception was encountered
Type: Error

Message: Call to undefined function Mpdf\mb_regex_encoding()

Filename: /var/www/html/ip/vendor/mpdf/mpdf/src/Mpdf.php

Line Number: 1097

Backtrace:

File: /var/www/html/ip/application/helpers/mpdf_helper.php
Line: 49
Function: __construct

File: /var/www/html/ip/application/helpers/pdf_helper.php
Line: 259
Function: pdf_create

File: /var/www/html/ip/application/modules/quotes/controllers/Quotes.php
Line: 193
Function: generate_quote_pdf

File: /var/www/html/ip/index.php
Line: 325
Function: require_once

[Kovah]

Please search the forum before posting: As I want to send invoice by email An uncaught Exception was encountered V1.5.7

[Shaquille_Daniel]

thanks for the help.