MISSING OPENING {

Hi all, as username suggest I'm having some big issues with my custom CSS. I keep getting "MISSING OPENING {" and none of my CSS codes that I add seems to work. 

Here's all my codes. Can someone please see if there is something obviously wrong? Really appreciate! 

blog detail page: .blog-item-title

and Navigation: .header-nav-item a

@font-face {   
font-family: 'Aletheia';   
src: url(fontURL.ttf/.otf), url(fontURL.woff), url(fontURL.woff2); 
}
https://static1.squarespace.com/static/5f3e9f6afc768812e0305c45/t/5f4d28e5bffb107cff27b66f/1598892262531/Aletheia.ttf// TEXT HYBERNATION

  
p, h1, h2, h3 {
-webkit-hyphens: manual !important;
-moz-hyphens: manual !important;
-ms-hyphens: manual !important;
hyphens: manual !important;
}

//MOBILE
//LATEST SECTION
@media only screen and (min-width: 640px)  {#block-yui_3_17_2_1_1598864197492_18912
{display: none !important}}

@media only screen and (max-width: 640px) { #block-yui_3_17_2_1_1597952136868_6243
{display: none !important}}

//FEATURED SECTION MOBILE
@media only screen and (min-width: 640px)  {#block-yui_3_17_2_1_1598864197492_5206
{display: none !important}}

@media only screen and (max-width: 640px) { #block-yui_3_17_2_1_1597953118698_5425
{display: none !important}}

.summary-header-text
{font-weight: 200;
font-size: 18pt !important;}

#block-yui_3_17_2_1_1598504137836_3694
{top: 30px;
padding-bottom: 0px}

.Footer-inner
{border-top: 30px solid #eee !important}

.horizontalrule-block
{margin-top: -20px !important;
margin-bottom: -20px !important}

//HEADER
.Header--bottom 
{background-color: fff; 
padding-bottom: 10px; 
margin-top: 0px} 

//INTRO
#introduction h3
{  text-shadow: 2px 4px 4px rgba(0,0,0,0.8)}

#introduction h1
{  text-shadow: 2px 2px 2px rgba(0,0,0,0.8);
color: white;
margin-bottom: -20px}

//ABOUT
#block-01cdb51ebf66847fe81a h3
{  text-shadow: 4px 4px 4px rgba(0,0,0,0.5)}

//DESTINATIONS
#introduction-destinations
{  text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
color: white;
margin-bottom: -30px}

//LATEST
#block-yui_3_17_2_1_1597952136868_6243
{top: -30px !important}

#block-3a504dab52c1caa9c562
{top: 10px}

#block-yui_3_17_2_1_1597826857365_7976 h2
{margin-bottom: -25px}

#footerBlocksMiddle
{display:none}

#footerBlocksBottom
{display:none}

.Blog-meta
{margin-top: -30px;
padding-left: 8px;
padding-top: 3px;
z-index: 1000;
background: #e1eaed}

.archive-block
{font-size: 11pt !important;
text-transform: uppercase;
font-weight: 300;
color: #e1eaed;
letter-spacing: 1px;
top: 10px

}

.archive-group-name-link
{background-color: hsl(221, 26%, 89%);
padding-left: 8px;
padding-right: 8px;
margin-bottom: -4px;
padding-top: 2px;
border-radius: 4px 4px 4px 4px;}

//Summary Title
.summary-title {
display: block;
color: hsl(19, 100%, 8%);
position: relative;
font-weight: 300;
font-size: 17pt !important;
top: -46px;
padding-top: 7px;
padding-left: 8px;
padding-bottom: 5px;
  background-color: #e1eaed}

.summary-excerpt 
{margin-top: -46px !important}

//NEWS PAGE
#block-yui_3_17_2_1_1597828736969_4898
{margin-bottom: -36px}

.Index-gallery-item-content-heading
{  text-shadow: 4px 4px 8px rgba(0,0,0,0.9)}
entry-title {
    font-family: 'put your font name here' !important;
{ border: solid 1px #e1.Index-gallery-item-inner

e‹‹aed}
  
.newsletter-block 
    color: black;
}

Hi. can you share site url? WE can check easier.