Issue: Error rendering template public:vw_search.less: error evaluating function `min` incompatible types index

Server error log
XF\CssRenderException: Error rendering template public:vw_search.less: error evaluating function `min` incompatible types index: 88863 (on or near line 3508) src/XF/CssRenderException.php:87
Generated by: Unknown account Apr 17, 2019 at 3:16 PM
Stack trace
3505 |
3506 | .vw-search-button.button--cta span {
3507 | padding: 0 8px;
*3508*| font-size: min((@_vwsearch-actionHeight - 3px) * 0.83, 14px);
3509 | }
3510 |
3511 | input.vw-search-button {
------------

#0 src/XF/CssRenderer.php(408): XF\CssRenderException::createFromLessException(Object(Les s_Exception_Compiler), 'public:vw_searc...', '// Note that th...')
#1 src/XF/CssRenderer.php(342): XF\CssRenderer->renderToCss('public:vw_searc...', '// Note that th...')
#2 src/addons/vw/vw/XF/CssRenderer.php(39): XF\CssRenderer->renderTemplate('public:vw_searc...', NULL, true)
#3 src/XF/CssRenderer.php(250): vw\vw\XF\CssRenderer->renderTemplate('public:vw_searc...', NULL)
#4 src/XF/CssRenderer.php(116): XF\CssRenderer->renderTemplates(Array, Array, Array)
#5 src/XF/CssWriter.php(53): XF\CssRenderer->render(Array)
#6 css.php(30): XF\CssWriter->run(Array, 23, 1, 'a1924073fec5ab2...')
#7 {main}

-------------

Previous Less_Exception_Compiler: error evaluating function `min` incompatible types index: 88863 - src/vendor/oyejorge/less.php/lib/Less/Tree/Call.php:80
#0 src/vendor/oyejorge/less.php/lib/Less/Tree/Expression.php(52): Less_Tree_Call->compile(Object(Less_Environment))
#1 src/vendor/oyejorge/less.php/lib/Less/Tree/Value.php(27): Less_Tree_Expression->compile(Object(Less_Environment))
#2 src/vendor/oyejorge/less.php/lib/Less/Tree/Rule.php(75): Less_Tree_Value->compile(Object(Less_Environment))
#3 src/vendor/oyejorge/less.php/lib/Less/Tree/Ruleset.php(94): Less_Tree_Rule->compile(Object(Less_Environment))
#4 src/vendor/oyejorge/less.php/lib/Less/Tree/Ruleset.php(94): Less_Tree_Ruleset->compile(Object(Less_Environment))
#5 src/vendor/oyejorge/less.php/lib/Less/Parser.php(199): Less_Tree_Ruleset->compile(Object(Less_Environment))
#6 src/XF/CssRenderer.php(404): Less_Parser->getCss()
#7 src/XF/CssRenderer.php(342): XF\CssRenderer->renderToCss('public:vw_searc...', '// Note that th...')
#8 src/addons/vw/vw/XF/CssRenderer.php(39): XF\CssRenderer->renderTemplate('public:vw_searc...', NULL, true)
#9 src/XF/CssRenderer.php(250): vw\vw\XF\CssRenderer->renderTemplate('public:vw_searc...', NULL)
#10 src/XF/CssRenderer.php(116): XF\CssRenderer->renderTemplates(Array, Array, Array)
#11 src/XF/CssWriter.php(53): XF\CssRenderer->render(Array)
#12 css.php(30): XF\CssWriter->run(Array, 23, 1, 'a1924073fec5ab2...')
#13 {main}
Request state
array(4) {
["url"] => string(619) "/css.php?css=public%3Abb_code.css%2Cpublic%3Abb_code.less% 2Cpublic%3Anode_list.less%2Cpublic%3Ashare_controls.less% 2Cpublic%3Astructured_list.less%2Cpublic%3Avw_area.css%2C public%3Avw_base.less%2Cpublic%3Avw_bbcode.less%2Cpublic% 3Avw_block.less%2Cpublic%3Avw_content.less%2Cpublic%3Avw_ content_list.less%2Cpublic%3Avw_icon.less%2Cpublic%3Avw_l ist.less%2Cpublic%3Avw_popup.css%2Cpublic%3Avw_search.les s%2Cpublic%3Avw_section.less%2Cpublic%3Avw_sidebar.less%2 Cpublic%3Avw_tab.css%2Cpublic%3Avw_title.less%2Cpublic%3A extra.less%2Cpublic%3Avw_additional.less&s=23&l=1&d=15555 09402&k=a1924073fec5ab2a80e0dec6534da1e023f40c18"
["referrer"] => string(49) "https://chroniclesrptests.com/Folklore/Characters"
["_GET"] => array(5) {
["css"] => string(459) "public:bb_code.css,public:bb_code.less,public:node_list. less,public:share_controls.less,public:structured_list.le ss,public:vw_area.css,public:vw_base.less,public:vw_bbcod e.less,public:vw_block.less,public:vw_content.less,public :vw_content_list.less,public:vw_icon.less,public:vw_list. less,public:vw_popup.css,public:vw_search.less,public:vw_ section.less,public:vw_sidebar.less,public:vw_tab.css,pub lic:vw_title.less,public:extra.less,public:vw_additional. less"
["s"] => string(2) "23"
["l"] => string(1) "1"
["d"] => string(10) "1555509402"
["k"] => string(40) "a1924073fec5ab2a80e0dec6534da1e023f40c18"
}
["_POST"] => array(0) {
}
}