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<b>Deprecated</b>:  Return type of Symfony\Component\HttpFoundation\ParameterBag::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in <b>/home/mautic/public_html/class/app/bootstrap.php.cache</b> on line <b>127</b><br />
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<b>Deprecated</b>:  Return type of Symfony\Component\HttpFoundation\ParameterBag::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in <b>/home/mautic/public_html/class/app/bootstrap.php.cache</b> on line <b>131</b><br />
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<b>Deprecated</b>:  Return type of Symfony\Component\HttpFoundation\HeaderBag::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in <b>/home/mautic/public_html/class/app/bootstrap.php.cache</b> on line <b>255</b><br />
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<b>Deprecated</b>:  Return type of Symfony\Component\HttpFoundation\HeaderBag::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in <b>/home/mautic/public_html/class/app/bootstrap.php.cache</b> on line <b>259</b><br />
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<b>Fatal error</b>:  Uncaught Error: Undefined constant &quot;MB_OVERLOAD_STRING&quot; in /home/mautic/public_html/class/vendor/joomla/string/src/phputf8/utf8.php:38
Stack trace:
#0 /home/mautic/public_html/class/vendor/composer/autoload_real.php(66): require()
#1 /home/mautic/public_html/class/vendor/composer/autoload_real.php(56): composerRequired5bbd50ee397c0d6f464a673e03c6d07('2fb9d6f23c8e8fa...', '/home/mautic/pu...')
#2 /home/mautic/public_html/class/vendor/autoload.php(7): ComposerAutoloaderInitd5bbd50ee397c0d6f464a673e03c6d07::getLoader()
#3 /home/mautic/public_html/class/app/autoload.php(15): require('/home/mautic/pu...')
#4 /home/mautic/public_html/class/index.php(19): require_once('/home/mautic/pu...')
#5 {main}
  thrown in <b>/home/mautic/public_html/class/vendor/joomla/string/src/phputf8/utf8.php</b> on line <b>38</b><br />