Ошибка 500 Minyfix Timeweb

Приветствую!

В общем вопрос такой, что выскакивает ошибка 500, но не всегда.
Получается первый раз когда прогружается в шаблоне то получается что выскакивает ошибка, потом перегружаешь страницу и сайт начинает работать.

Как выяснил? Логи сервера, может я конечно и ошибаюсь и не в нем дело, помогите разобраться:

kubsmeta.ru [Fri Mar 16 10:17:00 2018] [error] [pid 22303] sapi_apache2.c(362): [client 217.118.81.22:56104] PHP Fatal error:  Uncaught Sabberworm\\CSS\\Parsing\\UnexpectedTokenException: Identifier expected. Got \xe2\x80\x9c: gri\xe2\x80\x9d in /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php:178\nStack trace:\n#0 /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php(402): Sabberworm\\CSS\\Parser->parseIdentifier(true, false)\n#1 /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php(357): Sabberworm\\CSS\\Parser->parsePrimitiveValue()\n#2 /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php(189): Sabberworm\\CSS\\Parser->parseValue(Array)\n#3 /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php(114): Sabberworm\\CSS\\Parser->parseIdentifier()\n#4 /home/s/starknet01/Kubsmet in /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php on line 178
kubsmeta.ru [Fri Mar 16 10:25:51 2018] [error] [pid 7492] sapi_apache2.c(362): [client 217.118.81.22:37762] PHP Fatal error:  Uncaught Sabberworm\\CSS\\Parsing\\UnexpectedTokenException: Identifier expected. Got \xe2\x80\x9c: gri\xe2\x80\x9d in /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php:178\nStack trace:\n#0 /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php(402): Sabberworm\\CSS\\Parser->parseIdentifier(true, false)\n#1 /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php(357): Sabberworm\\CSS\\Parser->parsePrimitiveValue()\n#2 /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php(189): Sabberworm\\CSS\\Parser->parseValue(Array)\n#3 /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php(114): Sabberworm\\CSS\\Parser->parseIdentifier()\n#4 /home/s/starknet01/Kubsmet in /home/s/starknet01/Kubsmeta/public_html/core/components/minifyx/munee/vendor/sabberworm/php-css-parser/lib/Sabberworm/CSS/Parser.php on line 178

Сайт: kubsmeta.ru
Заранее спасибо!

UPDATE
Проблема была вот в этом куске css:

.section {
  display: none;
  padding: 2rem;
  
  @media screen and (min-width: 768px) {
    padding: 4rem;
  }
  
  @supports (display: grid) {
    display: block;
  }
}

.grid {
  display: grid;
  grid-gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  grid-auto-rows: 150px;
  grid-auto-flow: row dense;
}

.item {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-sizing: border-box;
  background: #0c9a9a;
  color: #fff;
  grid-column-start: auto;
  grid-row-start: auto;
  color: #fff;
  background-size: cover;
  background-position: center;
  box-shadow: -2px 2px 10px 0px rgba(#444, 0.4);
  transition: transform 0.3s ease-in-out;
  cursor: pointer;
  counter-increment: item-counter;
  
  &:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: black;
    opacity: 0.3;
    transition: opacity 0.3s ease-in-out;
  }
  
  &:hover {
    transform: scale(1.05);
    
    &:after {
      opacity: 0;
    }
  }

  &--medium {
    grid-row-end: span 2;
  }

  &--large {
    grid-row-end: span 3;
  }

  &--full {
    grid-column-end: auto;

    @media screen and (min-width: 768px) {
      grid-column: 1/-1;
      grid-row-end: span 2;
    }
  }
  
  &__details {
    position: relative;
    z-index: 1;
    padding: 15px;
    color: #444;
    background: #fff;
    text-transform: lowercase;
    letter-spacing: 1px;
    color: #828282;
    
    &:before {
      content: counter(item-counter);
      font-weight: bold;
      font-size: 1.1rem;
      padding-right: 0.5em;
      color: #444;
    }
  }
}

.section {
  display: none;
  padding: 2rem;
  
  @media screen and (min-width: 768px) {
    padding: 4rem;
  }
  
  @supports (display: grid) {
    display: block;
  }
}

.grid {
  display: grid;
  grid-gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  grid-auto-rows: 150px;
  grid-auto-flow: row dense;
}

.item {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-sizing: border-box;
  background: #0c9a9a;
  color: #fff;
  grid-column-start: auto;
  grid-row-start: auto;
  color: #fff;
  background-size: cover;
  background-position: center;
  box-shadow: -2px 2px 10px 0px rgba(#444, 0.4);
  transition: transform 0.3s ease-in-out;
  cursor: pointer;
  counter-increment: item-counter;
  
  &:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: black;
    opacity: 0.3;
    transition: opacity 0.3s ease-in-out;
  }
  
  &:hover {
    transform: scale(1.05);
    
    &:after {
      opacity: 0;
    }
  }

  &--medium {
    grid-row-end: span 2;
  }

  &--large {
    grid-row-end: span 3;
  }

  &--full {
    grid-column-end: auto;

    @media screen and (min-width: 768px) {
      grid-column: 1/-1;
      grid-row-end: span 2;
    }
  }
  
  &__details {
    position: relative;
    z-index: 1;
    padding: 15px;
    color: #444;
    background: #fff;
    text-transform: lowercase;
    letter-spacing: 1px;
    color: #828282;
    
    &:before {
      content: counter(item-counter);
      font-weight: bold;
      font-size: 1.1rem;
      padding-right: 0.5em;
      color: #444;
    }
  }
}